19891870

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{6883}}^1$

素因数の和:6924

約数の個数: 24

約数和(自身を含む): 38040984

約数和(自身を除く): 18149114

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 289, 578, 1445, 2890, 6883, 13766, 34415, 68830, 117011, 234022, 585055, 1170110, 1989187, 3978374, 9945935, 19891870]

約数ペア:

[(1, 19891870), (2, 9945935), (5, 3978374), (10, 1989187), (17, 1170110), (34, 585055), (85, 234022), (170, 117011), (289, 68830), (578, 34415), (1445, 13766), (2890, 6883)]