212090809

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{9677}}^1$

素因数の和:9816

約数の個数: 16

約数和(自身を含む): 252711936

約数和(自身を除く): 40621127

約数列:

[1, 7, 31, 101, 217, 707, 3131, 9677, 21917, 67739, 299987, 977377, 2099909, 6841639, 30298687, 212090809]

約数ペア:

[(1, 212090809), (7, 30298687), (31, 6841639), (101, 2099909), (217, 977377), (707, 299987), (3131, 67739), (9677, 21917)]