21604353

素因数分解:

$3^1\times {\mathrm{103}}^1\times {\mathrm{139}}^1\times {\mathrm{503}}^1$

素因数の和:748

約数の個数: 16

約数和(自身を含む): 29352960

約数和(自身を除く): 7748607

約数列:

[1, 3, 103, 139, 309, 417, 503, 1509, 14317, 42951, 51809, 69917, 155427, 209751, 7201451, 21604353]

約数ペア:

[(1, 21604353), (3, 7201451), (103, 209751), (139, 155427), (309, 69917), (417, 51809), (503, 42951), (1509, 14317)]