21022855

素因数分解:

$5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{3049}}^1$

素因数の和:3258

約数の個数: 16

約数和(自身を含む): 28987200

約数和(自身を除く): 7964345

約数列:

[1, 5, 7, 35, 197, 985, 1379, 3049, 6895, 15245, 21343, 106715, 600653, 3003265, 4204571, 21022855]

約数ペア:

[(1, 21022855), (5, 4204571), (7, 3003265), (35, 600653), (197, 106715), (985, 21343), (1379, 15245), (3049, 6895)]