21105070

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{301501}}^1$

素因数の和:301515

約数の個数: 16

約数和(自身を含む): 43416288

約数和(自身を除く): 22311218

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 301501, 603002, 1507505, 2110507, 3015010, 4221014, 10552535, 21105070]

約数ペア:

[(1, 21105070), (2, 10552535), (5, 4221014), (7, 3015010), (10, 2110507), (14, 1507505), (35, 603002), (70, 301501)]