21637232

素因数分解:

$2^4\times {\mathrm{137}}^1\times {\mathrm{9871}}^1$

素因数の和:10016

約数の個数: 20

約数和(自身を含む): 42232416

約数和(自身を除く): 20595184

約数列:

[1, 2, 4, 8, 16, 137, 274, 548, 1096, 2192, 9871, 19742, 39484, 78968, 157936, 1352327, 2704654, 5409308, 10818616, 21637232]

約数ペア:

[(1, 21637232), (2, 10818616), (4, 5409308), (8, 2704654), (16, 1352327), (137, 157936), (274, 78968), (548, 39484), (1096, 19742), (2192, 9871)]