18226647

素因数分解:

$3^3\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{271}}^1$

素因数の和:380

約数の個数: 32

約数和(自身を含む): 28200960

約数和(自身を除く): 9974313

約数列:

[1, 3, 9, 27, 47, 53, 141, 159, 271, 423, 477, 813, 1269, 1431, 2439, 2491, 7317, 7473, 12737, 14363, 22419, 38211, 43089, 67257, 114633, 129267, 343899, 387801, 675061, 2025183, 6075549, 18226647]

約数ペア:

[(1, 18226647), (3, 6075549), (9, 2025183), (27, 675061), (47, 387801), (53, 343899), (141, 129267), (159, 114633), (271, 67257), (423, 43089), (477, 38211), (813, 22419), (1269, 14363), (1431, 12737), (2439, 7473), (2491, 7317)]