21890430

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{243227}}^1$

素因数の和:243240

約数の個数: 24

約数和(自身を含む): 56915352

約数和(自身を除く): 35024922

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 243227, 486454, 729681, 1216135, 1459362, 2189043, 2432270, 3648405, 4378086, 7296810, 10945215, 21890430]

約数ペア:

[(1, 21890430), (2, 10945215), (3, 7296810), (5, 4378086), (6, 3648405), (9, 2432270), (10, 2189043), (15, 1459362), (18, 1216135), (30, 729681), (45, 486454), (90, 243227)]