21979898

素因数分解:

$2^1\times {\mathrm{163}}^1\times {\mathrm{191}}^1\times {\mathrm{353}}^1$

素因数の和:709

約数の個数: 16

約数和(自身を含む): 33440256

約数和(自身を除く): 11460358

約数列:

[1, 2, 163, 191, 326, 353, 382, 706, 31133, 57539, 62266, 67423, 115078, 134846, 10989949, 21979898]

約数ペア:

[(1, 21979898), (2, 10989949), (163, 134846), (191, 115078), (326, 67423), (353, 62266), (382, 57539), (706, 31133)]