21524940

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1$

素因数の和:170

約数の個数: 144

約数和(自身を含む): 69957888

約数和(自身を除く): 48432948

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 43, 45, 54, 60, 81, 86, 90, 103, 108, 129, 135, 162, 172, 180, 206, 215, 243, 258, 270, 309, 324, 387, 405, 412, 430, 486, 515, 516, 540, 618, 645, 774, 810, 860, 927, 972, 1030, 1161, 1215, 1236, 1290, 1545, 1548, 1620, 1854, 1935, 2060, 2322, 2430, 2580, 2781, 3090, 3483, 3708, 3870, 4429, 4635, 4644, 4860, 5562, 5805, 6180, 6966, 7740, 8343, 8858, 9270, 10449, 11124, 11610, 13287, 13905, 13932, 16686, 17415, 17716, 18540, 20898, 22145, 23220, 25029, 26574, 27810, 33372, 34830, 39861, 41715, 41796, 44290, 50058, 52245, 53148, 55620, 66435, 69660, 79722, 83430, 88580, 100116, 104490, 119583, 125145, 132870, 159444, 166860, 199305, 208980, 239166, 250290, 265740, 358749, 398610, 478332, 500580, 597915, 717498, 797220, 1076247, 1195830, 1434996, 1793745, 2152494, 2391660, 3587490, 4304988, 5381235, 7174980, 10762470, 21524940]

約数ペア:

[(1, 21524940), (2, 10762470), (3, 7174980), (4, 5381235), (5, 4304988), (6, 3587490), (9, 2391660), (10, 2152494), (12, 1793745), (15, 1434996), (18, 1195830), (20, 1076247), (27, 797220), (30, 717498), (36, 597915), (43, 500580), (45, 478332), (54, 398610), (60, 358749), (81, 265740), (86, 250290), (90, 239166), (103, 208980), (108, 199305), (129, 166860), (135, 159444), (162, 132870), (172, 125145), (180, 119583), (206, 104490), (215, 100116), (243, 88580), (258, 83430), (270, 79722), (309, 69660), (324, 66435), (387, 55620), (405, 53148), (412, 52245), (430, 50058), (486, 44290), (515, 41796), (516, 41715), (540, 39861), (618, 34830), (645, 33372), (774, 27810), (810, 26574), (860, 25029), (927, 23220), (972, 22145), (1030, 20898), (1161, 18540), (1215, 17716), (1236, 17415), (1290, 16686), (1545, 13932), (1548, 13905), (1620, 13287), (1854, 11610), (1935, 11124), (2060, 10449), (2322, 9270), (2430, 8858), (2580, 8343), (2781, 7740), (3090, 6966), (3483, 6180), (3708, 5805), (3870, 5562), (4429, 4860), (4635, 4644)]