21407888

素因数分解:

$2^4\times {\mathrm{359}}^1\times {\mathrm{3727}}^1$

素因数の和:4094

約数の個数: 20

約数和(自身を含む): 41604480

約数和(自身を除く): 20196592

約数列:

[1, 2, 4, 8, 16, 359, 718, 1436, 2872, 3727, 5744, 7454, 14908, 29816, 59632, 1337993, 2675986, 5351972, 10703944, 21407888]

約数ペア:

[(1, 21407888), (2, 10703944), (4, 5351972), (8, 2675986), (16, 1337993), (359, 59632), (718, 29816), (1436, 14908), (2872, 7454), (3727, 5744)]