221565764

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{416477}}^1$

素因数の和:416507

約数の個数: 24

約数和(自身を含む): 466455360

約数和(自身を除く): 244889596

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 416477, 832954, 1665908, 2915339, 5830678, 7913063, 11661356, 15826126, 31652252, 55391441, 110782882, 221565764]

約数ペア:

[(1, 221565764), (2, 110782882), (4, 55391441), (7, 31652252), (14, 15826126), (19, 11661356), (28, 7913063), (38, 5830678), (76, 2915339), (133, 1665908), (266, 832954), (532, 416477)]