21780210

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{726007}}^1$

素因数の和:726017

約数の個数: 16

約数和(自身を含む): 52272576

約数和(自身を除く): 30492366

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 726007, 1452014, 2178021, 3630035, 4356042, 7260070, 10890105, 21780210]

約数ペア:

[(1, 21780210), (2, 10890105), (3, 7260070), (5, 4356042), (6, 3630035), (10, 2178021), (15, 1452014), (30, 726007)]