18972990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{210811}}^1$

素因数の和:210824

約数の個数: 24

約数和(自身を含む): 49330008

約数和(自身を除く): 30357018

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 210811, 421622, 632433, 1054055, 1264866, 1897299, 2108110, 3162165, 3794598, 6324330, 9486495, 18972990]

約数ペア:

[(1, 18972990), (2, 9486495), (3, 6324330), (5, 3794598), (6, 3162165), (9, 2108110), (10, 1897299), (15, 1264866), (18, 1054055), (30, 632433), (45, 421622), (90, 210811)]