19899695921

素因数分解:

$7^1\times {\mathrm{89}}^1\times {\mathrm{3617}}^1\times {\mathrm{8831}}^1$

素因数の和:12544

約数の個数: 16

約数和(自身を含む): 23007006720

約数和(自身を除く): 3107310799

約数列:

[1, 7, 89, 623, 3617, 8831, 25319, 61817, 321913, 785959, 2253391, 5501713, 31941727, 223592089, 2842813703, 19899695921]

約数ペア:

[(1, 19899695921), (7, 2842813703), (89, 223592089), (623, 31941727), (3617, 5501713), (8831, 2253391), (25319, 785959), (61817, 321913)]