21969488

素因数分解:

$2^4\times {\mathrm{103}}^1\times {\mathrm{13331}}^1$

素因数の和:13442

約数の個数: 20

約数和(自身を含む): 42982368

約数和(自身を除く): 21012880

約数列:

[1, 2, 4, 8, 16, 103, 206, 412, 824, 1648, 13331, 26662, 53324, 106648, 213296, 1373093, 2746186, 5492372, 10984744, 21969488]

約数ペア:

[(1, 21969488), (2, 10984744), (4, 5492372), (8, 2746186), (16, 1373093), (103, 213296), (206, 106648), (412, 53324), (824, 26662), (1648, 13331)]