25749997

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{281}}^1$

素因数の和:373

約数の個数: 32

約数和(自身を含む): 34110720

約数和(自身を除く): 8360723

約数列:

[1, 7, 13, 19, 53, 91, 133, 247, 281, 371, 689, 1007, 1729, 1967, 3653, 4823, 5339, 7049, 13091, 14893, 25571, 37373, 69407, 91637, 104251, 193609, 282967, 485849, 1355263, 1980769, 3678571, 25749997]

約数ペア:

[(1, 25749997), (7, 3678571), (13, 1980769), (19, 1355263), (53, 485849), (91, 282967), (133, 193609), (247, 104251), (281, 91637), (371, 69407), (689, 37373), (1007, 25571), (1729, 14893), (1967, 13091), (3653, 7049), (4823, 5339)]