147987

素因数分解:

$3^6\times 7^1\times {\mathrm{29}}^1$

素因数の和:54

約数の個数: 28

約数和(自身を含む): 262320

約数和(自身を除く): 114333

約数列:

[1, 3, 7, 9, 21, 27, 29, 63, 81, 87, 189, 203, 243, 261, 567, 609, 729, 783, 1701, 1827, 2349, 5103, 5481, 7047, 16443, 21141, 49329, 147987]

約数ペア:

[(1, 147987), (3, 49329), (7, 21141), (9, 16443), (21, 7047), (27, 5481), (29, 5103), (63, 2349), (81, 1827), (87, 1701), (189, 783), (203, 729), (243, 609), (261, 567)]