279774677

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{1571}}^1$

素因数の和:1713

約数の個数: 32

約数和(自身を含む): 366213120

約数和(自身を除く): 86438443

約数列:

[1, 7, 13, 19, 91, 103, 133, 247, 721, 1339, 1571, 1729, 1957, 9373, 10997, 13699, 20423, 25441, 29849, 142961, 161813, 178087, 208943, 388037, 1132691, 2103569, 2716259, 3074447, 14724983, 21521129, 39967811, 279774677]

約数ペア:

[(1, 279774677), (7, 39967811), (13, 21521129), (19, 14724983), (91, 3074447), (103, 2716259), (133, 2103569), (247, 1132691), (721, 388037), (1339, 208943), (1571, 178087), (1729, 161813), (1957, 142961), (9373, 29849), (10997, 25441), (13699, 20423)]