21990696

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{10069}}^1$

素因数の和:10098

約数の個数: 64

約数和(自身を含む): 67670400

約数和(自身を除く): 45679704

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 21, 24, 26, 28, 39, 42, 52, 56, 78, 84, 91, 104, 156, 168, 182, 273, 312, 364, 546, 728, 1092, 2184, 10069, 20138, 30207, 40276, 60414, 70483, 80552, 120828, 130897, 140966, 211449, 241656, 261794, 281932, 392691, 422898, 523588, 563864, 785382, 845796, 916279, 1047176, 1570764, 1691592, 1832558, 2748837, 3141528, 3665116, 5497674, 7330232, 10995348, 21990696]

約数ペア:

[(1, 21990696), (2, 10995348), (3, 7330232), (4, 5497674), (6, 3665116), (7, 3141528), (8, 2748837), (12, 1832558), (13, 1691592), (14, 1570764), (21, 1047176), (24, 916279), (26, 845796), (28, 785382), (39, 563864), (42, 523588), (52, 422898), (56, 392691), (78, 281932), (84, 261794), (91, 241656), (104, 211449), (156, 140966), (168, 130897), (182, 120828), (273, 80552), (312, 70483), (364, 60414), (546, 40276), (728, 30207), (1092, 20138), (2184, 10069)]