18421641

素因数分解:

$3^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{3361}}^1$

素因数の和:3406

約数の個数: 32

約数和(自身を含む): 32275200

約数和(自身を除く): 13853559

約数列:

[1, 3, 7, 9, 21, 27, 29, 63, 87, 189, 203, 261, 609, 783, 1827, 3361, 5481, 10083, 23527, 30249, 70581, 90747, 97469, 211743, 292407, 635229, 682283, 877221, 2046849, 2631663, 6140547, 18421641]

約数ペア:

[(1, 18421641), (3, 6140547), (7, 2631663), (9, 2046849), (21, 877221), (27, 682283), (29, 635229), (63, 292407), (87, 211743), (189, 97469), (203, 90747), (261, 70581), (609, 30249), (783, 23527), (1827, 10083), (3361, 5481)]