20786032

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{131}}^1\times {\mathrm{211}}^1$

素因数の和:397

約数の個数: 40

約数和(自身を含む): 41640192

約数和(自身を除く): 20854160

約数列:

[1, 2, 4, 8, 16, 47, 94, 131, 188, 211, 262, 376, 422, 524, 752, 844, 1048, 1688, 2096, 3376, 6157, 9917, 12314, 19834, 24628, 27641, 39668, 49256, 55282, 79336, 98512, 110564, 158672, 221128, 442256, 1299127, 2598254, 5196508, 10393016, 20786032]

約数ペア:

[(1, 20786032), (2, 10393016), (4, 5196508), (8, 2598254), (16, 1299127), (47, 442256), (94, 221128), (131, 158672), (188, 110564), (211, 98512), (262, 79336), (376, 55282), (422, 49256), (524, 39668), (752, 27641), (844, 24628), (1048, 19834), (1688, 12314), (2096, 9917), (3376, 6157)]