391978497

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1\times {\mathrm{457}}^1$

素因数の和:673

約数の個数: 32

約数和(自身を含む): 549746560

約数和(自身を除く): 157768063

約数列:

[1, 3, 43, 61, 109, 129, 183, 327, 457, 1371, 2623, 4687, 6649, 7869, 14061, 19651, 19947, 27877, 49813, 58953, 83631, 149439, 285907, 857721, 1198711, 2141959, 3038593, 3596133, 6425877, 9115779, 130659499, 391978497]

約数ペア:

[(1, 391978497), (3, 130659499), (43, 9115779), (61, 6425877), (109, 3596133), (129, 3038593), (183, 2141959), (327, 1198711), (457, 857721), (1371, 285907), (2623, 149439), (4687, 83631), (6649, 58953), (7869, 49813), (14061, 27877), (19651, 19947)]