666729

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{557}}^1$

素因数の和:589

約数の個数: 24

約数和(自身を含む): 1160640

約数和(自身を除く): 493911

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 557, 1197, 1671, 3899, 5013, 10583, 11697, 31749, 35091, 74081, 95247, 222243, 666729]

約数ペア:

[(1, 666729), (3, 222243), (7, 95247), (9, 74081), (19, 35091), (21, 31749), (57, 11697), (63, 10583), (133, 5013), (171, 3899), (399, 1671), (557, 1197)]