21689110

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{127583}}^1$

素因数の和:127607

約数の個数: 16

約数和(自身を含む): 41337216

約数和(自身を除く): 19648106

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 127583, 255166, 637915, 1275830, 2168911, 4337822, 10844555, 21689110]

約数ペア:

[(1, 21689110), (2, 10844555), (5, 4337822), (10, 2168911), (17, 1275830), (34, 637915), (85, 255166), (170, 127583)]