17997381

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{157}}^1\times {\mathrm{271}}^1$

素因数の和:481

約数の個数: 24

約数和(自身を含む): 26817024

約数和(自身を除く): 8819643

約数列:

[1, 3, 9, 47, 141, 157, 271, 423, 471, 813, 1413, 2439, 7379, 12737, 22137, 38211, 42547, 66411, 114633, 127641, 382923, 1999709, 5999127, 17997381]

約数ペア:

[(1, 17997381), (3, 5999127), (9, 1999709), (47, 382923), (141, 127641), (157, 114633), (271, 66411), (423, 42547), (471, 38211), (813, 22137), (1413, 12737), (2439, 7379)]