217764405

素因数分解:

$3^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{72227}}^1$

素因数の和:72305

約数の個数: 24

約数和(自身を含む): 383097312

約数和(自身を除く): 165332907

約数列:

[1, 3, 5, 9, 15, 45, 67, 201, 335, 603, 1005, 3015, 72227, 216681, 361135, 650043, 1083405, 3250215, 4839209, 14517627, 24196045, 43552881, 72588135, 217764405]

約数ペア:

[(1, 217764405), (3, 72588135), (5, 43552881), (9, 24196045), (15, 14517627), (45, 4839209), (67, 3250215), (201, 1083405), (335, 650043), (603, 361135), (1005, 216681), (3015, 72227)]