20557605

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{33427}}^1$

素因数の和:33476

約数の個数: 16

約数和(自身を含む): 33695424

約数和(自身を除く): 13137819

約数列:

[1, 3, 5, 15, 41, 123, 205, 615, 33427, 100281, 167135, 501405, 1370507, 4111521, 6852535, 20557605]

約数ペア:

[(1, 20557605), (3, 6852535), (5, 4111521), (15, 1370507), (41, 501405), (123, 167135), (205, 100281), (615, 33427)]