660303

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{223}}^1$

素因数の和:283

約数の個数: 24

約数和(自身を含む): 1118208

約数和(自身を除く): 457905

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 223, 329, 423, 669, 987, 1561, 2007, 2961, 4683, 10481, 14049, 31443, 73367, 94329, 220101, 660303]

約数ペア:

[(1, 660303), (3, 220101), (7, 94329), (9, 73367), (21, 31443), (47, 14049), (63, 10481), (141, 4683), (223, 2961), (329, 2007), (423, 1561), (669, 987)]