21281430

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{709381}}^1$

素因数の和:709391

約数の個数: 16

約数和(自身を含む): 51075504

約数和(自身を除く): 29794074

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 709381, 1418762, 2128143, 3546905, 4256286, 7093810, 10640715, 21281430]

約数ペア:

[(1, 21281430), (2, 10640715), (3, 7093810), (5, 4256286), (6, 3546905), (10, 2128143), (15, 1418762), (30, 709381)]