21856112

素因数分解:

$2^4\times {\mathrm{181}}^1\times {\mathrm{7547}}^1$

素因数の和:7736

約数の個数: 20

約数和(自身を含む): 42585816

約数和(自身を除く): 20729704

約数列:

[1, 2, 4, 8, 16, 181, 362, 724, 1448, 2896, 7547, 15094, 30188, 60376, 120752, 1366007, 2732014, 5464028, 10928056, 21856112]

約数ペア:

[(1, 21856112), (2, 10928056), (4, 5464028), (8, 2732014), (16, 1366007), (181, 120752), (362, 60376), (724, 30188), (1448, 15094), (2896, 7547)]