21852355

素因数分解:

$5^1\times 7^1\times {\mathrm{643}}^1\times {\mathrm{971}}^1$

素因数の和:1626

約数の個数: 16

約数和(自身を含む): 30046464

約数和(自身を除く): 8194109

約数列:

[1, 5, 7, 35, 643, 971, 3215, 4501, 4855, 6797, 22505, 33985, 624353, 3121765, 4370471, 21852355]

約数ペア:

[(1, 21852355), (5, 4370471), (7, 3121765), (35, 624353), (643, 33985), (971, 22505), (3215, 6797), (4501, 4855)]