2221443

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{953}}^1$

素因数の和:1003

約数の個数: 24

約数和(自身を含む): 3770208

約数和(自身を除く): 1548765

約数列:

[1, 3, 7, 9, 21, 37, 63, 111, 259, 333, 777, 953, 2331, 2859, 6671, 8577, 20013, 35261, 60039, 105783, 246827, 317349, 740481, 2221443]

約数ペア:

[(1, 2221443), (3, 740481), (7, 317349), (9, 246827), (21, 105783), (37, 60039), (63, 35261), (111, 20013), (259, 8577), (333, 6671), (777, 2859), (953, 2331)]