21869168

素因数分解:

$2^4\times {\mathrm{977}}^1\times {\mathrm{1399}}^1$

素因数の和:2384

約数の個数: 20

約数和(自身を含む): 42445200

約数和(自身を除く): 20576032

約数列:

[1, 2, 4, 8, 16, 977, 1399, 1954, 2798, 3908, 5596, 7816, 11192, 15632, 22384, 1366823, 2733646, 5467292, 10934584, 21869168]

約数ペア:

[(1, 21869168), (2, 10934584), (4, 5467292), (8, 2733646), (16, 1366823), (977, 22384), (1399, 15632), (1954, 11192), (2798, 7816), (3908, 5596)]