13621955

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{643}}^1$

素因数の和:890

約数の個数: 16

約数和(自身を含む): 17310720

約数和(自身を除く): 3688765

約数列:

[1, 5, 19, 95, 223, 643, 1115, 3215, 4237, 12217, 21185, 61085, 143389, 716945, 2724391, 13621955]

約数ペア:

[(1, 13621955), (5, 2724391), (19, 716945), (95, 143389), (223, 61085), (643, 21185), (1115, 12217), (3215, 4237)]