19215777

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{227}}^1$

素因数の和:405

約数の個数: 32

約数和(自身を含む): 30643200

約数和(自身を除く): 11427423

約数列:

[1, 3, 7, 21, 29, 87, 139, 203, 227, 417, 609, 681, 973, 1589, 2919, 4031, 4767, 6583, 12093, 19749, 28217, 31553, 46081, 84651, 94659, 138243, 220871, 662613, 915037, 2745111, 6405259, 19215777]

約数ペア:

[(1, 19215777), (3, 6405259), (7, 2745111), (21, 915037), (29, 662613), (87, 220871), (139, 138243), (203, 94659), (227, 84651), (417, 46081), (609, 31553), (681, 28217), (973, 19749), (1589, 12093), (2919, 6583), (4031, 4767)]