21871416

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{617}}^1$

素因数の和:844

約数の個数: 64

約数和(自身を含む): 62887680

約数和(自身を除く): 41016264

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 211, 422, 617, 633, 844, 1234, 1266, 1477, 1688, 1851, 2468, 2532, 2954, 3702, 4319, 4431, 4936, 5064, 5908, 7404, 8638, 8862, 11816, 12957, 14808, 17276, 17724, 25914, 34552, 35448, 51828, 103656, 130187, 260374, 390561, 520748, 781122, 911309, 1041496, 1562244, 1822618, 2733927, 3124488, 3645236, 5467854, 7290472, 10935708, 21871416]

約数ペア:

[(1, 21871416), (2, 10935708), (3, 7290472), (4, 5467854), (6, 3645236), (7, 3124488), (8, 2733927), (12, 1822618), (14, 1562244), (21, 1041496), (24, 911309), (28, 781122), (42, 520748), (56, 390561), (84, 260374), (168, 130187), (211, 103656), (422, 51828), (617, 35448), (633, 34552), (844, 25914), (1234, 17724), (1266, 17276), (1477, 14808), (1688, 12957), (1851, 11816), (2468, 8862), (2532, 8638), (2954, 7404), (3702, 5908), (4319, 5064), (4431, 4936)]