19722789

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{223}}^1\times {\mathrm{317}}^1$

素因数の和:577

約数の個数: 24

約数和(自身を含む): 29632512

約数和(自身を除く): 9909723

約数列:

[1, 3, 9, 31, 93, 223, 279, 317, 669, 951, 2007, 2853, 6913, 9827, 20739, 29481, 62217, 70691, 88443, 212073, 636219, 2191421, 6574263, 19722789]

約数ペア:

[(1, 19722789), (3, 6574263), (9, 2191421), (31, 636219), (93, 212073), (223, 88443), (279, 70691), (317, 62217), (669, 29481), (951, 20739), (2007, 9827), (2853, 6913)]