9980901

素因数分解:

$3^4\times 7^1\times {\mathrm{29}}^1\times {\mathrm{607}}^1$

素因数の和:655

約数の個数: 40

約数和(自身を含む): 17656320

約数和(自身を除く): 7675419

約数列:

[1, 3, 7, 9, 21, 27, 29, 63, 81, 87, 189, 203, 261, 567, 607, 609, 783, 1821, 1827, 2349, 4249, 5463, 5481, 12747, 16389, 16443, 17603, 38241, 49167, 52809, 114723, 123221, 158427, 344169, 369663, 475281, 1108989, 1425843, 3326967, 9980901]

約数ペア:

[(1, 9980901), (3, 3326967), (7, 1425843), (9, 1108989), (21, 475281), (27, 369663), (29, 344169), (63, 158427), (81, 123221), (87, 114723), (189, 52809), (203, 49167), (261, 38241), (567, 17603), (607, 16443), (609, 16389), (783, 12747), (1821, 5481), (1827, 5463), (2349, 4249)]