20537872

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{881}}^1$

素因数の和:967

約数の個数: 40

約数和(自身を含む): 41997312

約数和(自身を除く): 21459440

約数列:

[1, 2, 4, 8, 16, 31, 47, 62, 94, 124, 188, 248, 376, 496, 752, 881, 1457, 1762, 2914, 3524, 5828, 7048, 11656, 14096, 23312, 27311, 41407, 54622, 82814, 109244, 165628, 218488, 331256, 436976, 662512, 1283617, 2567234, 5134468, 10268936, 20537872]

約数ペア:

[(1, 20537872), (2, 10268936), (4, 5134468), (8, 2567234), (16, 1283617), (31, 662512), (47, 436976), (62, 331256), (94, 218488), (124, 165628), (188, 109244), (248, 82814), (376, 54622), (496, 41407), (752, 27311), (881, 23312), (1457, 14096), (1762, 11656), (2914, 7048), (3524, 5828)]