16217721

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{1429}}^1$

素因数の和:1545

約数の個数: 24

約数和(自身を含む): 25505480

約数和(自身を除く): 9287759

約数列:

[1, 3, 9, 13, 39, 97, 117, 291, 873, 1261, 1429, 3783, 4287, 11349, 12861, 18577, 55731, 138613, 167193, 415839, 1247517, 1801969, 5405907, 16217721]

約数ペア:

[(1, 16217721), (3, 5405907), (9, 1801969), (13, 1247517), (39, 415839), (97, 167193), (117, 138613), (291, 55731), (873, 18577), (1261, 12861), (1429, 11349), (3783, 4287)]