18691857

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{193}}^1\times {\mathrm{211}}^1$

素因数の和:430

約数の個数: 32

約数和(自身を含む): 29612160

約数和(自身を除く): 10920303

約数列:

[1, 3, 9, 17, 27, 51, 153, 193, 211, 459, 579, 633, 1737, 1899, 3281, 3587, 5211, 5697, 9843, 10761, 29529, 32283, 40723, 88587, 96849, 122169, 366507, 692291, 1099521, 2076873, 6230619, 18691857]

約数ペア:

[(1, 18691857), (3, 6230619), (9, 2076873), (17, 1099521), (27, 692291), (51, 366507), (153, 122169), (193, 96849), (211, 88587), (459, 40723), (579, 32283), (633, 29529), (1737, 10761), (1899, 9843), (3281, 5697), (3587, 5211)]