19799565

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{30697}}^1$

素因数の和:30748

約数の個数: 16

約数和(自身を含む): 32417088

約数和(自身を除く): 12617523

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 30697, 92091, 153485, 460455, 1319971, 3959913, 6599855, 19799565]

約数ペア:

[(1, 19799565), (3, 6599855), (5, 3959913), (15, 1319971), (43, 460455), (129, 153485), (215, 92091), (645, 30697)]