21546760

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{28351}}^1$

素因数の和:28381

約数の個数: 32

約数和(自身を含む): 51033600

約数和(自身を除く): 29486840

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 28351, 56702, 113404, 141755, 226808, 283510, 538669, 567020, 1077338, 1134040, 2154676, 2693345, 4309352, 5386690, 10773380, 21546760]

約数ペア:

[(1, 21546760), (2, 10773380), (4, 5386690), (5, 4309352), (8, 2693345), (10, 2154676), (19, 1134040), (20, 1077338), (38, 567020), (40, 538669), (76, 283510), (95, 226808), (152, 141755), (190, 113404), (380, 56702), (760, 28351)]