21512687

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{607}}^1$

素因数の和:758

約数の個数: 16

約数和(自身を含む): 25331712

約数和(自身を除く): 3819025

約数列:

[1, 7, 61, 83, 427, 581, 607, 4249, 5063, 35441, 37027, 50381, 259189, 352667, 3073241, 21512687]

約数ペア:

[(1, 21512687), (7, 3073241), (61, 352667), (83, 259189), (427, 50381), (581, 37027), (607, 35441), (4249, 5063)]