259428

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{1663}}^1$

素因数の和:1683

約数の個数: 24

約数和(自身を含む): 652288

約数和(自身を除く): 392860

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 1663, 3326, 4989, 6652, 9978, 19956, 21619, 43238, 64857, 86476, 129714, 259428]

約数ペア:

[(1, 259428), (2, 129714), (3, 86476), (4, 64857), (6, 43238), (12, 21619), (13, 19956), (26, 9978), (39, 6652), (52, 4989), (78, 3326), (156, 1663)]