20785010519

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{1031}}^1\times {\mathrm{221539}}^1$

素因数の和:222590

約数の個数: 16

約数和(自身を含む): 25606479360

約数和(自身を除く): 4821468841

約数列:

[1, 7, 13, 91, 1031, 7217, 13403, 93821, 221539, 1550773, 2880007, 20160049, 228406709, 1598846963, 2969287217, 20785010519]

約数ペア:

[(1, 20785010519), (7, 2969287217), (13, 1598846963), (91, 228406709), (1031, 20160049), (7217, 2880007), (13403, 1550773), (93821, 221539)]