221289404

素因数分解:

$2^2\times 7^1\times {\mathrm{1237}}^1\times {\mathrm{6389}}^1$

素因数の和:7637

約数の個数: 24

約数和(自身を含む): 443005920

約数和(自身を除く): 221716516

約数列:

[1, 2, 4, 7, 14, 28, 1237, 2474, 4948, 6389, 8659, 12778, 17318, 25556, 34636, 44723, 89446, 178892, 7903193, 15806386, 31612772, 55322351, 110644702, 221289404]

約数ペア:

[(1, 221289404), (2, 110644702), (4, 55322351), (7, 31612772), (14, 15806386), (28, 7903193), (1237, 178892), (2474, 89446), (4948, 44723), (6389, 34636), (8659, 25556), (12778, 17318)]