21345965

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{2347}}^1$

素因数の和:2476

約数の個数: 16

約数和(自身を含む): 27387072

約数和(自身を除く): 6041107

約数列:

[1, 5, 17, 85, 107, 535, 1819, 2347, 9095, 11735, 39899, 199495, 251129, 1255645, 4269193, 21345965]

約数ペア:

[(1, 21345965), (5, 4269193), (17, 1255645), (85, 251129), (107, 199495), (535, 39899), (1819, 11735), (2347, 9095)]