213438985

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{31319}}^1$

素因数の和:31400

約数の個数: 16

約数和(自身を含む): 270604800

約数和(自身を除く): 57165815

約数列:

[1, 5, 29, 47, 145, 235, 1363, 6815, 31319, 156595, 908251, 1471993, 4541255, 7359965, 42687797, 213438985]

約数ペア:

[(1, 213438985), (5, 42687797), (29, 7359965), (47, 4541255), (145, 1471993), (235, 908251), (1363, 156595), (6815, 31319)]