21860176

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{105097}}^1$

素因数の和:105118

約数の個数: 20

約数和(自身を含む): 45612532

約数和(自身を除く): 23752356

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 105097, 210194, 420388, 840776, 1366261, 1681552, 2732522, 5465044, 10930088, 21860176]

約数ペア:

[(1, 21860176), (2, 10930088), (4, 5465044), (8, 2732522), (13, 1681552), (16, 1366261), (26, 840776), (52, 420388), (104, 210194), (208, 105097)]