21988174

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{49747}}^1$

素因数の和:49779

約数の個数: 16

約数和(自身を含む): 37609488

約数和(自身を除く): 15621314

約数列:

[1, 2, 13, 17, 26, 34, 221, 442, 49747, 99494, 646711, 845699, 1293422, 1691398, 10994087, 21988174]

約数ペア:

[(1, 21988174), (2, 10994087), (13, 1691398), (17, 1293422), (26, 845699), (34, 646711), (221, 99494), (442, 49747)]