20409966

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{463}}^1$

素因数の和:581

約数の個数: 48

約数和(自身を含む): 46325760

約数和(自身を除く): 25915794

約数列:

[1, 2, 3, 6, 9, 18, 31, 62, 79, 93, 158, 186, 237, 279, 463, 474, 558, 711, 926, 1389, 1422, 2449, 2778, 4167, 4898, 7347, 8334, 14353, 14694, 22041, 28706, 36577, 43059, 44082, 73154, 86118, 109731, 129177, 219462, 258354, 329193, 658386, 1133887, 2267774, 3401661, 6803322, 10204983, 20409966]

約数ペア:

[(1, 20409966), (2, 10204983), (3, 6803322), (6, 3401661), (9, 2267774), (18, 1133887), (31, 658386), (62, 329193), (79, 258354), (93, 219462), (158, 129177), (186, 109731), (237, 86118), (279, 73154), (463, 44082), (474, 43059), (558, 36577), (711, 28706), (926, 22041), (1389, 14694), (1422, 14353), (2449, 8334), (2778, 7347), (4167, 4898)]