2680209

素因数分解:

$3^4\times 7^1\times {\mathrm{29}}^1\times {\mathrm{163}}^1$

素因数の和:211

約数の個数: 40

約数和(自身を含む): 4762560

約数和(自身を除く): 2082351

約数列:

[1, 3, 7, 9, 21, 27, 29, 63, 81, 87, 163, 189, 203, 261, 489, 567, 609, 783, 1141, 1467, 1827, 2349, 3423, 4401, 4727, 5481, 10269, 13203, 14181, 16443, 30807, 33089, 42543, 92421, 99267, 127629, 297801, 382887, 893403, 2680209]

約数ペア:

[(1, 2680209), (3, 893403), (7, 382887), (9, 297801), (21, 127629), (27, 99267), (29, 92421), (63, 42543), (81, 33089), (87, 30807), (163, 16443), (189, 14181), (203, 13203), (261, 10269), (489, 5481), (567, 4727), (609, 4401), (783, 3423), (1141, 2349), (1467, 1827)]