19904594

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{97}}^1$

素因数の和:242

約数の個数: 32

約数和(自身を含む): 32175360

約数和(自身を除く): 12270766

約数列:

[1, 2, 37, 47, 59, 74, 94, 97, 118, 194, 1739, 2183, 2773, 3478, 3589, 4366, 4559, 5546, 5723, 7178, 9118, 11446, 102601, 168683, 205202, 211751, 268981, 337366, 423502, 537962, 9952297, 19904594]

約数ペア:

[(1, 19904594), (2, 9952297), (37, 537962), (47, 423502), (59, 337366), (74, 268981), (94, 211751), (97, 205202), (118, 168683), (194, 102601), (1739, 11446), (2183, 9118), (2773, 7178), (3478, 5723), (3589, 5546), (4366, 4559)]