19029775

素因数分解:

$5^2\times {\mathrm{71}}^2\times {\mathrm{151}}^1$

素因数の和:303

約数の個数: 18

約数和(自身を含む): 24092456

約数和(自身を除く): 5062681

約数列:

[1, 5, 25, 71, 151, 355, 755, 1775, 3775, 5041, 10721, 25205, 53605, 126025, 268025, 761191, 3805955, 19029775]

約数ペア:

[(1, 19029775), (5, 3805955), (25, 761191), (71, 268025), (151, 126025), (355, 53605), (755, 25205), (1775, 10721), (3775, 5041)]