21476440

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31583}}^1$

素因数の和:31611

約数の個数: 32

約数和(自身を含む): 51166080

約数和(自身を除く): 29689640

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 31583, 63166, 126332, 157915, 252664, 315830, 536911, 631660, 1073822, 1263320, 2147644, 2684555, 4295288, 5369110, 10738220, 21476440]

約数ペア:

[(1, 21476440), (2, 10738220), (4, 5369110), (5, 4295288), (8, 2684555), (10, 2147644), (17, 1263320), (20, 1073822), (34, 631660), (40, 536911), (68, 315830), (85, 252664), (136, 157915), (170, 126332), (340, 63166), (680, 31583)]