20399058

素因数分解:

$2^1\times 3^2\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{211}}^1$

素因数の和:391

約数の個数: 48

約数和(自身を含む): 45837792

約数和(自身を除く): 25438734

約数列:

[1, 2, 3, 6, 9, 18, 41, 82, 123, 131, 211, 246, 262, 369, 393, 422, 633, 738, 786, 1179, 1266, 1899, 2358, 3798, 5371, 8651, 10742, 16113, 17302, 25953, 27641, 32226, 48339, 51906, 55282, 77859, 82923, 96678, 155718, 165846, 248769, 497538, 1133281, 2266562, 3399843, 6799686, 10199529, 20399058]

約数ペア:

[(1, 20399058), (2, 10199529), (3, 6799686), (6, 3399843), (9, 2266562), (18, 1133281), (41, 497538), (82, 248769), (123, 165846), (131, 155718), (211, 96678), (246, 82923), (262, 77859), (369, 55282), (393, 51906), (422, 48339), (633, 32226), (738, 27641), (786, 25953), (1179, 17302), (1266, 16113), (1899, 10742), (2358, 8651), (3798, 5371)]