21125160

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{101}}^1$

素因数の和:208

約数の個数: 192

約数和(自身を含む): 80196480

約数和(自身を除く): 59071320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 70, 72, 83, 84, 90, 101, 105, 120, 126, 140, 166, 168, 180, 202, 210, 249, 252, 280, 303, 315, 332, 360, 404, 415, 420, 498, 504, 505, 581, 606, 630, 664, 707, 747, 808, 830, 840, 909, 996, 1010, 1162, 1212, 1245, 1260, 1414, 1494, 1515, 1660, 1743, 1818, 1992, 2020, 2121, 2324, 2424, 2490, 2520, 2828, 2905, 2988, 3030, 3320, 3486, 3535, 3636, 3735, 4040, 4242, 4545, 4648, 4980, 5229, 5656, 5810, 5976, 6060, 6363, 6972, 7070, 7272, 7470, 8383, 8484, 8715, 9090, 9960, 10458, 10605, 11620, 12120, 12726, 13944, 14140, 14940, 16766, 16968, 17430, 18180, 20916, 21210, 23240, 25149, 25452, 26145, 28280, 29880, 31815, 33532, 34860, 36360, 41832, 41915, 42420, 50298, 50904, 52290, 58681, 63630, 67064, 69720, 75447, 83830, 84840, 100596, 104580, 117362, 125745, 127260, 150894, 167660, 176043, 201192, 209160, 234724, 251490, 254520, 293405, 301788, 335320, 352086, 377235, 469448, 502980, 528129, 586810, 603576, 704172, 754470, 880215, 1005960, 1056258, 1173620, 1408344, 1508940, 1760430, 2112516, 2347240, 2640645, 3017880, 3520860, 4225032, 5281290, 7041720, 10562580, 21125160]

約数ペア:

[(1, 21125160), (2, 10562580), (3, 7041720), (4, 5281290), (5, 4225032), (6, 3520860), (7, 3017880), (8, 2640645), (9, 2347240), (10, 2112516), (12, 1760430), (14, 1508940), (15, 1408344), (18, 1173620), (20, 1056258), (21, 1005960), (24, 880215), (28, 754470), (30, 704172), (35, 603576), (36, 586810), (40, 528129), (42, 502980), (45, 469448), (56, 377235), (60, 352086), (63, 335320), (70, 301788), (72, 293405), (83, 254520), (84, 251490), (90, 234724), (101, 209160), (105, 201192), (120, 176043), (126, 167660), (140, 150894), (166, 127260), (168, 125745), (180, 117362), (202, 104580), (210, 100596), (249, 84840), (252, 83830), (280, 75447), (303, 69720), (315, 67064), (332, 63630), (360, 58681), (404, 52290), (415, 50904), (420, 50298), (498, 42420), (504, 41915), (505, 41832), (581, 36360), (606, 34860), (630, 33532), (664, 31815), (707, 29880), (747, 28280), (808, 26145), (830, 25452), (840, 25149), (909, 23240), (996, 21210), (1010, 20916), (1162, 18180), (1212, 17430), (1245, 16968), (1260, 16766), (1414, 14940), (1494, 14140), (1515, 13944), (1660, 12726), (1743, 12120), (1818, 11620), (1992, 10605), (2020, 10458), (2121, 9960), (2324, 9090), (2424, 8715), (2490, 8484), (2520, 8383), (2828, 7470), (2905, 7272), (2988, 7070), (3030, 6972), (3320, 6363), (3486, 6060), (3535, 5976), (3636, 5810), (3735, 5656), (4040, 5229), (4242, 4980), (4545, 4648)]