1257417217

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{1291}}^1\times {\mathrm{2281}}^1$

素因数の和:3640

約数の個数: 16

約数和(自身を含む): 1462378624

約数和(自身を除く): 204961407

約数列:

[1, 7, 61, 427, 1291, 2281, 9037, 15967, 78751, 139141, 551257, 973987, 2944771, 20613397, 179631031, 1257417217]

約数ペア:

[(1, 1257417217), (7, 179631031), (61, 20613397), (427, 2944771), (1291, 973987), (2281, 551257), (9037, 139141), (15967, 78751)]