257788646751

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{211}}^1\times {\mathrm{607}}^1\times {\mathrm{18133}}^1$

素因数の和:18991

約数の個数: 32

約数和(自身を含む): 355284809728

約数和(自身を除く): 97496162977

約数列:

[1, 3, 37, 111, 211, 607, 633, 1821, 7807, 18133, 22459, 23421, 54399, 67377, 128077, 384231, 670921, 2012763, 3826063, 4738849, 11006731, 11478189, 14216547, 33020193, 141564331, 407249047, 424692993, 1221747141, 2322420241, 6967260723, 85929548917, 257788646751]

約数ペア:

[(1, 257788646751), (3, 85929548917), (37, 6967260723), (111, 2322420241), (211, 1221747141), (607, 424692993), (633, 407249047), (1821, 141564331), (7807, 33020193), (18133, 14216547), (22459, 11478189), (23421, 11006731), (54399, 4738849), (67377, 3826063), (128077, 2012763), (384231, 670921)]