21747120

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1$

素因数の和:163

約数の個数: 160

約数和(自身を含む): 72376320

約数和(自身を除く): 50629200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 37, 40, 48, 60, 62, 74, 79, 80, 93, 111, 120, 124, 148, 155, 158, 185, 186, 222, 237, 240, 248, 296, 310, 316, 370, 372, 395, 444, 465, 474, 496, 555, 592, 620, 632, 740, 744, 790, 888, 930, 948, 1110, 1147, 1185, 1240, 1264, 1480, 1488, 1580, 1776, 1860, 1896, 2220, 2294, 2370, 2449, 2480, 2923, 2960, 3160, 3441, 3720, 3792, 4440, 4588, 4740, 4898, 5735, 5846, 6320, 6882, 7347, 7440, 8769, 8880, 9176, 9480, 9796, 11470, 11692, 12245, 13764, 14615, 14694, 17205, 17538, 18352, 18960, 19592, 22940, 23384, 24490, 27528, 29230, 29388, 34410, 35076, 36735, 39184, 43845, 45880, 46768, 48980, 55056, 58460, 58776, 68820, 70152, 73470, 87690, 90613, 91760, 97960, 116920, 117552, 137640, 140304, 146940, 175380, 181226, 195920, 233840, 271839, 275280, 293880, 350760, 362452, 453065, 543678, 587760, 701520, 724904, 906130, 1087356, 1359195, 1449808, 1812260, 2174712, 2718390, 3624520, 4349424, 5436780, 7249040, 10873560, 21747120]

約数ペア:

[(1, 21747120), (2, 10873560), (3, 7249040), (4, 5436780), (5, 4349424), (6, 3624520), (8, 2718390), (10, 2174712), (12, 1812260), (15, 1449808), (16, 1359195), (20, 1087356), (24, 906130), (30, 724904), (31, 701520), (37, 587760), (40, 543678), (48, 453065), (60, 362452), (62, 350760), (74, 293880), (79, 275280), (80, 271839), (93, 233840), (111, 195920), (120, 181226), (124, 175380), (148, 146940), (155, 140304), (158, 137640), (185, 117552), (186, 116920), (222, 97960), (237, 91760), (240, 90613), (248, 87690), (296, 73470), (310, 70152), (316, 68820), (370, 58776), (372, 58460), (395, 55056), (444, 48980), (465, 46768), (474, 45880), (496, 43845), (555, 39184), (592, 36735), (620, 35076), (632, 34410), (740, 29388), (744, 29230), (790, 27528), (888, 24490), (930, 23384), (948, 22940), (1110, 19592), (1147, 18960), (1185, 18352), (1240, 17538), (1264, 17205), (1480, 14694), (1488, 14615), (1580, 13764), (1776, 12245), (1860, 11692), (1896, 11470), (2220, 9796), (2294, 9480), (2370, 9176), (2449, 8880), (2480, 8769), (2923, 7440), (2960, 7347), (3160, 6882), (3441, 6320), (3720, 5846), (3792, 5735), (4440, 4898), (4588, 4740)]