21080488

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{18427}}^1$

素因数の和:18457

約数の個数: 32

約数和(自身を含む): 46438560

約数和(自身を除く): 25358072

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 143, 286, 572, 1144, 18427, 36854, 73708, 147416, 202697, 239551, 405394, 479102, 810788, 958204, 1621576, 1916408, 2635061, 5270122, 10540244, 21080488]

約数ペア:

[(1, 21080488), (2, 10540244), (4, 5270122), (8, 2635061), (11, 1916408), (13, 1621576), (22, 958204), (26, 810788), (44, 479102), (52, 405394), (88, 239551), (104, 202697), (143, 147416), (286, 73708), (572, 36854), (1144, 18427)]