18629541

素因数分解:

$3^3\times 7^1\times {\mathrm{241}}^1\times {\mathrm{409}}^1$

素因数の和:666

約数の個数: 32

約数和(自身を含む): 31750400

約数和(自身を除く): 13120859

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 241, 409, 723, 1227, 1687, 2169, 2863, 3681, 5061, 6507, 8589, 11043, 15183, 25767, 45549, 77301, 98569, 295707, 689983, 887121, 2069949, 2661363, 6209847, 18629541]

約数ペア:

[(1, 18629541), (3, 6209847), (7, 2661363), (9, 2069949), (21, 887121), (27, 689983), (63, 295707), (189, 98569), (241, 77301), (409, 45549), (723, 25767), (1227, 15183), (1687, 11043), (2169, 8589), (2863, 6507), (3681, 5061)]