21416784

素因数分解:

$2^4\times 3^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{389}}^1$

素因数の和:468

約数の個数: 80

約数和(自身を含む): 58805760

約数和(自身を除く): 37388976

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 31, 37, 48, 62, 74, 93, 111, 124, 148, 186, 222, 248, 296, 372, 389, 444, 496, 592, 744, 778, 888, 1147, 1167, 1488, 1556, 1776, 2294, 2334, 3112, 3441, 4588, 4668, 6224, 6882, 9176, 9336, 12059, 13764, 14393, 18352, 18672, 24118, 27528, 28786, 36177, 43179, 48236, 55056, 57572, 72354, 86358, 96472, 115144, 144708, 172716, 192944, 230288, 289416, 345432, 446183, 578832, 690864, 892366, 1338549, 1784732, 2677098, 3569464, 5354196, 7138928, 10708392, 21416784]

約数ペア:

[(1, 21416784), (2, 10708392), (3, 7138928), (4, 5354196), (6, 3569464), (8, 2677098), (12, 1784732), (16, 1338549), (24, 892366), (31, 690864), (37, 578832), (48, 446183), (62, 345432), (74, 289416), (93, 230288), (111, 192944), (124, 172716), (148, 144708), (186, 115144), (222, 96472), (248, 86358), (296, 72354), (372, 57572), (389, 55056), (444, 48236), (496, 43179), (592, 36177), (744, 28786), (778, 27528), (888, 24118), (1147, 18672), (1167, 18352), (1488, 14393), (1556, 13764), (1776, 12059), (2294, 9336), (2334, 9176), (3112, 6882), (3441, 6224), (4588, 4668)]