18406791

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{229}}^2$

素因数の和:480

約数の個数: 24

約数和(自身を含む): 29495760

約数和(自身を除く): 11088969

約数列:

[1, 3, 9, 13, 27, 39, 117, 229, 351, 687, 2061, 2977, 6183, 8931, 26793, 52441, 80379, 157323, 471969, 681733, 1415907, 2045199, 6135597, 18406791]

約数ペア:

[(1, 18406791), (3, 6135597), (9, 2045199), (13, 1415907), (27, 681733), (39, 471969), (117, 157323), (229, 80379), (351, 52441), (687, 26793), (2061, 8931), (2977, 6183)]