215821972513

素因数分解:

$7^1\times {\mathrm{101}}^1\times {\mathrm{283}}^1\times {\mathrm{1078673}}^1$

素因数の和:1079064

約数の個数: 16

約数和(自身を含む): 249976227456

約数和(自身を除く): 34154254943

約数列:

[1, 7, 101, 283, 707, 1981, 28583, 200081, 1078673, 7550711, 108945973, 305264459, 762621811, 2136851213, 30831710359, 215821972513]

約数ペア:

[(1, 215821972513), (7, 30831710359), (101, 2136851213), (283, 762621811), (707, 305264459), (1981, 108945973), (28583, 7550711), (200081, 1078673)]