977398961

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{647}}^1\times {\mathrm{853}}^1$

素因数の和:1541

約数の個数: 32

約数和(自身を含む): 1275015168

約数和(自身を除く): 297616207

約数列:

[1, 7, 11, 23, 77, 161, 253, 647, 853, 1771, 4529, 5971, 7117, 9383, 14881, 19619, 49819, 65681, 104167, 137333, 163691, 215809, 551891, 1145837, 1510663, 3863237, 6070801, 12693493, 42495607, 88854451, 139628423, 977398961]

約数ペア:

[(1, 977398961), (7, 139628423), (11, 88854451), (23, 42495607), (77, 12693493), (161, 6070801), (253, 3863237), (647, 1510663), (853, 1145837), (1771, 551891), (4529, 215809), (5971, 163691), (7117, 137333), (9383, 104167), (14881, 65681), (19619, 49819)]