21984272

素因数分解:

$2^4\times {\mathrm{397}}^1\times {\mathrm{3461}}^1$

素因数の和:3866

約数の個数: 20

約数和(自身を含む): 42714156

約数和(自身を除く): 20729884

約数列:

[1, 2, 4, 8, 16, 397, 794, 1588, 3176, 3461, 6352, 6922, 13844, 27688, 55376, 1374017, 2748034, 5496068, 10992136, 21984272]

約数ペア:

[(1, 21984272), (2, 10992136), (4, 5496068), (8, 2748034), (16, 1374017), (397, 55376), (794, 27688), (1588, 13844), (3176, 6922), (3461, 6352)]