20785384

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{191}}^1\times {\mathrm{223}}^1$

素因数の和:481

約数の個数: 32

約数和(自身を含む): 39997440

約数和(自身を除く): 19212056

約数列:

[1, 2, 4, 8, 61, 122, 191, 223, 244, 382, 446, 488, 764, 892, 1528, 1784, 11651, 13603, 23302, 27206, 42593, 46604, 54412, 85186, 93208, 108824, 170372, 340744, 2598173, 5196346, 10392692, 20785384]

約数ペア:

[(1, 20785384), (2, 10392692), (4, 5196346), (8, 2598173), (61, 340744), (122, 170372), (191, 108824), (223, 93208), (244, 85186), (382, 54412), (446, 46604), (488, 42593), (764, 27206), (892, 23302), (1528, 13603), (1784, 11651)]