20716904

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{6869}}^1$

素因数の和:6917

約数の個数: 32

約数和(自身を含む): 43281000

約数和(自身を除く): 22564096

約数列:

[1, 2, 4, 8, 13, 26, 29, 52, 58, 104, 116, 232, 377, 754, 1508, 3016, 6869, 13738, 27476, 54952, 89297, 178594, 199201, 357188, 398402, 714376, 796804, 1593608, 2589613, 5179226, 10358452, 20716904]

約数ペア:

[(1, 20716904), (2, 10358452), (4, 5179226), (8, 2589613), (13, 1593608), (26, 796804), (29, 714376), (52, 398402), (58, 357188), (104, 199201), (116, 178594), (232, 89297), (377, 54952), (754, 27476), (1508, 13738), (3016, 6869)]