18220167

素因数分解:

$3^3\times 7^1\times {\mathrm{149}}^1\times {\mathrm{647}}^1$

素因数の和:812

約数の個数: 32

約数和(自身を含む): 31104000

約数和(自身を除く): 12883833

約数列:

[1, 3, 7, 9, 21, 27, 63, 149, 189, 447, 647, 1043, 1341, 1941, 3129, 4023, 4529, 5823, 9387, 13587, 17469, 28161, 40761, 96403, 122283, 289209, 674821, 867627, 2024463, 2602881, 6073389, 18220167]

約数ペア:

[(1, 18220167), (3, 6073389), (7, 2602881), (9, 2024463), (21, 867627), (27, 674821), (63, 289209), (149, 122283), (189, 96403), (447, 40761), (647, 28161), (1043, 17469), (1341, 13587), (1941, 9387), (3129, 5823), (4023, 4529)]