21390278

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{117529}}^1$

素因数の和:117551

約数の個数: 16

約数和(自身を含む): 39490080

約数和(自身を除く): 18099802

約数列:

[1, 2, 7, 13, 14, 26, 91, 182, 117529, 235058, 822703, 1527877, 1645406, 3055754, 10695139, 21390278]

約数ペア:

[(1, 21390278), (2, 10695139), (7, 3055754), (13, 1645406), (14, 1527877), (26, 822703), (91, 235058), (182, 117529)]