18972434

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{23539}}^1$

素因数の和:23585

約数の個数: 16

約数和(自身を含む): 31637760

約数和(自身を除く): 12665326

約数列:

[1, 2, 13, 26, 31, 62, 403, 806, 23539, 47078, 306007, 612014, 729709, 1459418, 9486217, 18972434]

約数ペア:

[(1, 18972434), (2, 9486217), (13, 1459418), (26, 729709), (31, 612014), (62, 306007), (403, 47078), (806, 23539)]