21987045

素因数分解:

$3^4\times 5^1\times {\mathrm{233}}^2$

素因数の和:483

約数の個数: 30

約数和(自身を含む): 39583698

約数和(自身を除く): 17596653

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 233, 405, 699, 1165, 2097, 3495, 6291, 10485, 18873, 31455, 54289, 94365, 162867, 271445, 488601, 814335, 1465803, 2443005, 4397409, 7329015, 21987045]

約数ペア:

[(1, 21987045), (3, 7329015), (5, 4397409), (9, 2443005), (15, 1465803), (27, 814335), (45, 488601), (81, 271445), (135, 162867), (233, 94365), (405, 54289), (699, 31455), (1165, 18873), (2097, 10485), (3495, 6291)]