21761201

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{113}}^1$

素因数の和:233

約数の個数: 32

約数和(自身を含む): 28498176

約数和(自身を除く): 6736975

約数列:

[1, 7, 11, 41, 61, 77, 113, 287, 427, 451, 671, 791, 1243, 2501, 3157, 4633, 4697, 6893, 8701, 17507, 27511, 32431, 48251, 50963, 75823, 192577, 282613, 356741, 530761, 1978291, 3108743, 21761201]

約数ペア:

[(1, 21761201), (7, 3108743), (11, 1978291), (41, 530761), (61, 356741), (77, 282613), (113, 192577), (287, 75823), (427, 50963), (451, 48251), (671, 32431), (791, 27511), (1243, 17507), (2501, 8701), (3157, 6893), (4633, 4697)]