19912304818

素因数分解:

$2^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{15980983}}^1$

素因数の和:15981081

約数の個数: 16

約数和(自身を含む): 34518925440

約数和(自身を除く): 14606620622

約数列:

[1, 2, 7, 14, 89, 178, 623, 1246, 15980983, 31961966, 111866881, 223733762, 1422307487, 2844614974, 9956152409, 19912304818]

約数ペア:

[(1, 19912304818), (2, 9956152409), (7, 2844614974), (14, 1422307487), (89, 223733762), (178, 111866881), (623, 31961966), (1246, 15980983)]