19901653604

素因数分解:

$2^2\times 7^2\times {\mathrm{101539049}}^1$

素因数の和:101539067

約数の個数: 18

約数和(自身を含む): 40514080950

約数和(自身を除く): 20612427346

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 101539049, 203078098, 406156196, 710773343, 1421546686, 2843093372, 4975413401, 9950826802, 19901653604]

約数ペア:

[(1, 19901653604), (2, 9950826802), (4, 4975413401), (7, 2843093372), (14, 1421546686), (28, 710773343), (49, 406156196), (98, 203078098), (196, 101539049)]