18874856

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2357}}^1$

素因数の和:2394

約数の個数: 64

約数和(自身を含む): 47537280

約数和(自身を除く): 28662424

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 22, 26, 28, 44, 52, 56, 77, 88, 91, 104, 143, 154, 182, 286, 308, 364, 572, 616, 728, 1001, 1144, 2002, 2357, 4004, 4714, 8008, 9428, 16499, 18856, 25927, 30641, 32998, 51854, 61282, 65996, 103708, 122564, 131992, 181489, 207416, 214487, 245128, 337051, 362978, 428974, 674102, 725956, 857948, 1348204, 1451912, 1715896, 2359357, 2696408, 4718714, 9437428, 18874856]

約数ペア:

[(1, 18874856), (2, 9437428), (4, 4718714), (7, 2696408), (8, 2359357), (11, 1715896), (13, 1451912), (14, 1348204), (22, 857948), (26, 725956), (28, 674102), (44, 428974), (52, 362978), (56, 337051), (77, 245128), (88, 214487), (91, 207416), (104, 181489), (143, 131992), (154, 122564), (182, 103708), (286, 65996), (308, 61282), (364, 51854), (572, 32998), (616, 30641), (728, 25927), (1001, 18856), (1144, 16499), (2002, 9428), (2357, 8008), (4004, 4714)]