28535728

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{137191}}^1$

素因数の和:137212

約数の個数: 20

約数和(自身を含む): 59541328

約数和(自身を除く): 31005600

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 137191, 274382, 548764, 1097528, 1783483, 2195056, 3566966, 7133932, 14267864, 28535728]

約数ペア:

[(1, 28535728), (2, 14267864), (4, 7133932), (8, 3566966), (13, 2195056), (16, 1783483), (26, 1097528), (52, 548764), (104, 274382), (208, 137191)]