21055140

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{317}}^1$

素因数の和:379

約数の個数: 120

約数和(自身を含む): 67875192

約数和(自身を除く): 46820052

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 41, 45, 54, 60, 81, 82, 90, 108, 123, 135, 162, 164, 180, 205, 246, 270, 317, 324, 369, 405, 410, 492, 540, 615, 634, 738, 810, 820, 951, 1107, 1230, 1268, 1476, 1585, 1620, 1845, 1902, 2214, 2460, 2853, 3170, 3321, 3690, 3804, 4428, 4755, 5535, 5706, 6340, 6642, 7380, 8559, 9510, 11070, 11412, 12997, 13284, 14265, 16605, 17118, 19020, 22140, 25677, 25994, 28530, 33210, 34236, 38991, 42795, 51354, 51988, 57060, 64985, 66420, 77982, 85590, 102708, 116973, 128385, 129970, 155964, 171180, 194955, 233946, 256770, 259940, 350919, 389910, 467892, 513540, 584865, 701838, 779820, 1052757, 1169730, 1403676, 1754595, 2105514, 2339460, 3509190, 4211028, 5263785, 7018380, 10527570, 21055140]

約数ペア:

[(1, 21055140), (2, 10527570), (3, 7018380), (4, 5263785), (5, 4211028), (6, 3509190), (9, 2339460), (10, 2105514), (12, 1754595), (15, 1403676), (18, 1169730), (20, 1052757), (27, 779820), (30, 701838), (36, 584865), (41, 513540), (45, 467892), (54, 389910), (60, 350919), (81, 259940), (82, 256770), (90, 233946), (108, 194955), (123, 171180), (135, 155964), (162, 129970), (164, 128385), (180, 116973), (205, 102708), (246, 85590), (270, 77982), (317, 66420), (324, 64985), (369, 57060), (405, 51988), (410, 51354), (492, 42795), (540, 38991), (615, 34236), (634, 33210), (738, 28530), (810, 25994), (820, 25677), (951, 22140), (1107, 19020), (1230, 17118), (1268, 16605), (1476, 14265), (1585, 13284), (1620, 12997), (1845, 11412), (1902, 11070), (2214, 9510), (2460, 8559), (2853, 7380), (3170, 6642), (3321, 6340), (3690, 5706), (3804, 5535), (4428, 4755)]