21085448

素因数分解:

$2^3\times {\mathrm{1123}}^1\times {\mathrm{2347}}^1$

素因数の和:3476

約数の個数: 16

約数和(自身を含む): 39587280

約数和(自身を除く): 18501832

約数列:

[1, 2, 4, 8, 1123, 2246, 2347, 4492, 4694, 8984, 9388, 18776, 2635681, 5271362, 10542724, 21085448]

約数ペア:

[(1, 21085448), (2, 10542724), (4, 5271362), (8, 2635681), (1123, 18776), (2246, 9388), (2347, 8984), (4492, 4694)]