20178548

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{13381}}^1$

素因数の和:13427

約数の個数: 24

約数和(自身を含む): 39343080

約数和(自身を除く): 19164532

約数列:

[1, 2, 4, 13, 26, 29, 52, 58, 116, 377, 754, 1508, 13381, 26762, 53524, 173953, 347906, 388049, 695812, 776098, 1552196, 5044637, 10089274, 20178548]

約数ペア:

[(1, 20178548), (2, 10089274), (4, 5044637), (13, 1552196), (26, 776098), (29, 695812), (52, 388049), (58, 347906), (116, 173953), (377, 53524), (754, 26762), (1508, 13381)]