20728864

素因数分解:

$2^5\times {\mathrm{13}}^2\times {\mathrm{3833}}^1$

素因数の和:3869

約数の個数: 36

約数和(自身を含む): 44202186

約数和(自身を除く): 23473322

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 169, 208, 338, 416, 676, 1352, 2704, 3833, 5408, 7666, 15332, 30664, 49829, 61328, 99658, 122656, 199316, 398632, 647777, 797264, 1295554, 1594528, 2591108, 5182216, 10364432, 20728864]

約数ペア:

[(1, 20728864), (2, 10364432), (4, 5182216), (8, 2591108), (13, 1594528), (16, 1295554), (26, 797264), (32, 647777), (52, 398632), (104, 199316), (169, 122656), (208, 99658), (338, 61328), (416, 49829), (676, 30664), (1352, 15332), (2704, 7666), (3833, 5408)]