21942512

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{80671}}^1$

素因数の和:80696

約数の個数: 20

約数和(自身を含む): 45014976

約数和(自身を除く): 23072464

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 80671, 161342, 322684, 645368, 1290736, 1371407, 2742814, 5485628, 10971256, 21942512]

約数ペア:

[(1, 21942512), (2, 10971256), (4, 5485628), (8, 2742814), (16, 1371407), (17, 1290736), (34, 645368), (68, 322684), (136, 161342), (272, 80671)]