21969610

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{9941}}^1$

素因数の和:9978

約数の個数: 32

約数和(自身を含む): 45096912

約数和(自身を除く): 23127302

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 442, 1105, 2210, 9941, 19882, 49705, 99410, 129233, 168997, 258466, 337994, 646165, 844985, 1292330, 1689970, 2196961, 4393922, 10984805, 21969610]

約数ペア:

[(1, 21969610), (2, 10984805), (5, 4393922), (10, 2196961), (13, 1689970), (17, 1292330), (26, 844985), (34, 646165), (65, 337994), (85, 258466), (130, 168997), (170, 129233), (221, 99410), (442, 49705), (1105, 19882), (2210, 9941)]