19907628

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{3449}}^1$

素因数の和:3506

約数の個数: 48

約数和(自身を含む): 51391200

約数和(自身を除く): 31483572

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 37, 39, 52, 74, 78, 111, 148, 156, 222, 444, 481, 962, 1443, 1924, 2886, 3449, 5772, 6898, 10347, 13796, 20694, 41388, 44837, 89674, 127613, 134511, 179348, 255226, 269022, 382839, 510452, 538044, 765678, 1531356, 1658969, 3317938, 4976907, 6635876, 9953814, 19907628]

約数ペア:

[(1, 19907628), (2, 9953814), (3, 6635876), (4, 4976907), (6, 3317938), (12, 1658969), (13, 1531356), (26, 765678), (37, 538044), (39, 510452), (52, 382839), (74, 269022), (78, 255226), (111, 179348), (148, 134511), (156, 127613), (222, 89674), (444, 44837), (481, 41388), (962, 20694), (1443, 13796), (1924, 10347), (2886, 6898), (3449, 5772)]