21602765

素因数分解:

$5^1\times {\mathrm{107}}^1\times {\mathrm{149}}^1\times {\mathrm{271}}^1$

素因数の和:532

約数の個数: 16

約数和(自身を含む): 26438400

約数和(自身を除く): 4835635

約数列:

[1, 5, 107, 149, 271, 535, 745, 1355, 15943, 28997, 40379, 79715, 144985, 201895, 4320553, 21602765]

約数ペア:

[(1, 21602765), (5, 4320553), (107, 201895), (149, 144985), (271, 79715), (535, 40379), (745, 28997), (1355, 15943)]