127978137

素因数分解:

$3^6\times 7^1\times {\mathrm{31}}^1\times {\mathrm{809}}^1$

素因数の和:865

約数の個数: 56

約数和(自身を含む): 226644480

約数和(自身を除く): 98666343

約数列:

[1, 3, 7, 9, 21, 27, 31, 63, 81, 93, 189, 217, 243, 279, 567, 651, 729, 809, 837, 1701, 1953, 2427, 2511, 5103, 5663, 5859, 7281, 7533, 16989, 17577, 21843, 22599, 25079, 50967, 52731, 65529, 75237, 152901, 158193, 175553, 196587, 225711, 458703, 526659, 589761, 677133, 1376109, 1579977, 2031399, 4128327, 4739931, 6094197, 14219793, 18282591, 42659379, 127978137]

約数ペア:

[(1, 127978137), (3, 42659379), (7, 18282591), (9, 14219793), (21, 6094197), (27, 4739931), (31, 4128327), (63, 2031399), (81, 1579977), (93, 1376109), (189, 677133), (217, 589761), (243, 526659), (279, 458703), (567, 225711), (651, 196587), (729, 175553), (809, 158193), (837, 152901), (1701, 75237), (1953, 65529), (2427, 52731), (2511, 50967), (5103, 25079), (5663, 22599), (5859, 21843), (7281, 17577), (7533, 16989)]