20691656

素因数分解:

$2^3\times {\mathrm{47}}^1\times {\mathrm{113}}^1\times {\mathrm{487}}^1$

素因数の和:653

約数の個数: 32

約数和(自身を含む): 40055040

約数和(自身を除く): 19363384

約数列:

[1, 2, 4, 8, 47, 94, 113, 188, 226, 376, 452, 487, 904, 974, 1948, 3896, 5311, 10622, 21244, 22889, 42488, 45778, 55031, 91556, 110062, 183112, 220124, 440248, 2586457, 5172914, 10345828, 20691656]

約数ペア:

[(1, 20691656), (2, 10345828), (4, 5172914), (8, 2586457), (47, 440248), (94, 220124), (113, 183112), (188, 110062), (226, 91556), (376, 55031), (452, 45778), (487, 42488), (904, 22889), (974, 21244), (1948, 10622), (3896, 5311)]