391256481

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{379}}^1$

素因数の和:550

約数の個数: 64

約数和(自身を含む): 674150400

約数和(自身を除く): 282893919

約数列:

[1, 3, 7, 11, 21, 33, 41, 77, 109, 123, 231, 287, 327, 379, 451, 763, 861, 1137, 1199, 1353, 2289, 2653, 3157, 3597, 4169, 4469, 7959, 8393, 9471, 12507, 13407, 15539, 25179, 29183, 31283, 41311, 46617, 49159, 87549, 93849, 108773, 123933, 147477, 170929, 289177, 326319, 344113, 454421, 512787, 867531, 1032339, 1196503, 1363263, 1693751, 3180947, 3589509, 5081253, 9542841, 11856257, 18631261, 35568771, 55893783, 130418827, 391256481]

約数ペア:

[(1, 391256481), (3, 130418827), (7, 55893783), (11, 35568771), (21, 18631261), (33, 11856257), (41, 9542841), (77, 5081253), (109, 3589509), (123, 3180947), (231, 1693751), (287, 1363263), (327, 1196503), (379, 1032339), (451, 867531), (763, 512787), (861, 454421), (1137, 344113), (1199, 326319), (1353, 289177), (2289, 170929), (2653, 147477), (3157, 123933), (3597, 108773), (4169, 93849), (4469, 87549), (7959, 49159), (8393, 46617), (9471, 41311), (12507, 31283), (13407, 29183), (15539, 25179)]