21862780

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{10613}}^1$

素因数の和:10725

約数の個数: 24

約数和(自身を含む): 46361952

約数和(自身を除く): 24499172

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 10613, 21226, 42452, 53065, 106130, 212260, 1093139, 2186278, 4372556, 5465695, 10931390, 21862780]

約数ペア:

[(1, 21862780), (2, 10931390), (4, 5465695), (5, 4372556), (10, 2186278), (20, 1093139), (103, 212260), (206, 106130), (412, 53065), (515, 42452), (1030, 21226), (2060, 10613)]