21980986

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{5119}}^1$

素因数の和:5253

約数の個数: 16

約数和(自身を含む): 35020800

約数和(自身を除く): 13039814

約数列:

[1, 2, 19, 38, 113, 226, 2147, 4294, 5119, 10238, 97261, 194522, 578447, 1156894, 10990493, 21980986]

約数ペア:

[(1, 21980986), (2, 10990493), (19, 1156894), (38, 578447), (113, 194522), (226, 97261), (2147, 10238), (4294, 5119)]