21290910

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{19181}}^1$

素因数の和:19228

約数の個数: 32

約数和(自身を含む): 52481952

約数和(自身を除く): 31191042

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 37, 74, 111, 185, 222, 370, 555, 1110, 19181, 38362, 57543, 95905, 115086, 191810, 287715, 575430, 709697, 1419394, 2129091, 3548485, 4258182, 7096970, 10645455, 21290910]

約数ペア:

[(1, 21290910), (2, 10645455), (3, 7096970), (5, 4258182), (6, 3548485), (10, 2129091), (15, 1419394), (30, 709697), (37, 575430), (74, 287715), (111, 191810), (185, 115086), (222, 95905), (370, 57543), (555, 38362), (1110, 19181)]