18941735

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{229}}^1\times {\mathrm{233}}^1$

素因数の和:538

約数の個数: 16

約数和(自身を含む): 23250240

約数和(自身を除く): 4308505

約数列:

[1, 5, 71, 229, 233, 355, 1145, 1165, 16259, 16543, 53357, 81295, 82715, 266785, 3788347, 18941735]

約数ペア:

[(1, 18941735), (5, 3788347), (71, 266785), (229, 82715), (233, 81295), (355, 53357), (1145, 16543), (1165, 16259)]