20193265

素因数分解:

$5^1\times {\mathrm{53}}^1\times {\mathrm{181}}^1\times {\mathrm{421}}^1$

素因数の和:660

約数の個数: 16

約数和(自身を含む): 24884496

約数和(自身を除く): 4691231

約数列:

[1, 5, 53, 181, 265, 421, 905, 2105, 9593, 22313, 47965, 76201, 111565, 381005, 4038653, 20193265]

約数ペア:

[(1, 20193265), (5, 4038653), (53, 381005), (181, 111565), (265, 76201), (421, 47965), (905, 22313), (2105, 9593)]