658637649

素因数分解:

$3^6\times {\mathrm{47}}^2\times {\mathrm{409}}^1$

素因数の和:521

約数の個数: 42

約数和(自身を含む): 1011429410

約数和(自身を除く): 352791761

約数列:

[1, 3, 9, 27, 47, 81, 141, 243, 409, 423, 729, 1227, 1269, 2209, 3681, 3807, 6627, 11043, 11421, 19223, 19881, 33129, 34263, 57669, 59643, 99387, 173007, 178929, 298161, 519021, 536787, 903481, 1557063, 1610361, 2710443, 4671189, 8131329, 14013567, 24393987, 73181961, 219545883, 658637649]

約数ペア:

[(1, 658637649), (3, 219545883), (9, 73181961), (27, 24393987), (47, 14013567), (81, 8131329), (141, 4671189), (243, 2710443), (409, 1610361), (423, 1557063), (729, 903481), (1227, 536787), (1269, 519021), (2209, 298161), (3681, 178929), (3807, 173007), (6627, 99387), (11043, 59643), (11421, 57669), (19223, 34263), (19881, 33129)]