406372221

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{135593}}^1$

素因数の和:135642

約数の個数: 20

約数和(自身を含む): 623461212

約数和(自身を除く): 217088991

約数列:

[1, 3, 9, 27, 37, 81, 111, 333, 999, 2997, 135593, 406779, 1220337, 3661011, 5016941, 10983033, 15050823, 45152469, 135457407, 406372221]

約数ペア:

[(1, 406372221), (3, 135457407), (9, 45152469), (27, 15050823), (37, 10983033), (81, 5016941), (111, 3661011), (333, 1220337), (999, 406779), (2997, 135593)]