19874270

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{152879}}^1$

素因数の和:152899

約数の個数: 16

約数和(自身を含む): 38525760

約数和(自身を除く): 18651490

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 152879, 305758, 764395, 1528790, 1987427, 3974854, 9937135, 19874270]

約数ペア:

[(1, 19874270), (2, 9937135), (5, 3974854), (10, 1987427), (13, 1528790), (26, 764395), (65, 305758), (130, 152879)]