21875135

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{2557}}^1$

素因数の和:2650

約数の個数: 16

約数和(自身を含む): 27626400

約数和(自身を除く): 5751265

約数列:

[1, 5, 29, 59, 145, 295, 1711, 2557, 8555, 12785, 74153, 150863, 370765, 754315, 4375027, 21875135]

約数ペア:

[(1, 21875135), (5, 4375027), (29, 754315), (59, 370765), (145, 150863), (295, 74153), (1711, 12785), (2557, 8555)]