19931288

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{2309}}^1$

素因数の和:2411

約数の個数: 32

約数和(自身を含む): 40748400

約数和(自身を除く): 20817112

約数列:

[1, 2, 4, 8, 13, 26, 52, 83, 104, 166, 332, 664, 1079, 2158, 2309, 4316, 4618, 8632, 9236, 18472, 30017, 60034, 120068, 191647, 240136, 383294, 766588, 1533176, 2491411, 4982822, 9965644, 19931288]

約数ペア:

[(1, 19931288), (2, 9965644), (4, 4982822), (8, 2491411), (13, 1533176), (26, 766588), (52, 383294), (83, 240136), (104, 191647), (166, 120068), (332, 60034), (664, 30017), (1079, 18472), (2158, 9236), (2309, 8632), (4316, 4618)]