21045100

素因数分解:

$2^2\times 5^2\times {\mathrm{229}}^1\times {\mathrm{919}}^1$

素因数の和:1162

約数の個数: 36

約数和(自身を含む): 45917200

約数和(自身を除く): 24872100

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 229, 458, 916, 919, 1145, 1838, 2290, 3676, 4580, 4595, 5725, 9190, 11450, 18380, 22900, 22975, 45950, 91900, 210451, 420902, 841804, 1052255, 2104510, 4209020, 5261275, 10522550, 21045100]

約数ペア:

[(1, 21045100), (2, 10522550), (4, 5261275), (5, 4209020), (10, 2104510), (20, 1052255), (25, 841804), (50, 420902), (100, 210451), (229, 91900), (458, 45950), (916, 22975), (919, 22900), (1145, 18380), (1838, 11450), (2290, 9190), (3676, 5725), (4580, 4595)]