19430825

素因数分解:

$5^2\times {\mathrm{19}}^2\times {\mathrm{2153}}^1$

素因数の和:2201

約数の個数: 18

約数和(自身を含む): 25440894

約数和(自身を除く): 6010069

約数列:

[1, 5, 19, 25, 95, 361, 475, 1805, 2153, 9025, 10765, 40907, 53825, 204535, 777233, 1022675, 3886165, 19430825]

約数ペア:

[(1, 19430825), (5, 3886165), (19, 1022675), (25, 777233), (95, 204535), (361, 53825), (475, 40907), (1805, 10765), (2153, 9025)]