72320521

素因数分解:

$7^5\times {\mathrm{13}}^1\times {\mathrm{331}}^1$

素因数の和:379

約数の個数: 24

約数和(自身を含む): 91137984

約数和(自身を除く): 18817463

約数列:

[1, 7, 13, 49, 91, 331, 343, 637, 2317, 2401, 4303, 4459, 16219, 16807, 30121, 31213, 113533, 210847, 218491, 794731, 1475929, 5563117, 10331503, 72320521]

約数ペア:

[(1, 72320521), (7, 10331503), (13, 5563117), (49, 1475929), (91, 794731), (331, 218491), (343, 210847), (637, 113533), (2317, 31213), (2401, 30121), (4303, 16807), (4459, 16219)]