187801659

素因数分解:

$3^4\times {\mathrm{89}}^1\times {\mathrm{109}}^1\times {\mathrm{239}}^1$

素因数の和:449

約数の個数: 40

約数和(自身を含む): 287496000

約数和(自身を除く): 99694341

約数列:

[1, 3, 9, 27, 81, 89, 109, 239, 267, 327, 717, 801, 981, 2151, 2403, 2943, 6453, 7209, 8829, 9701, 19359, 21271, 26051, 29103, 63813, 78153, 87309, 191439, 234459, 261927, 574317, 703377, 785781, 1722951, 2110131, 2318539, 6955617, 20866851, 62600553, 187801659]

約数ペア:

[(1, 187801659), (3, 62600553), (9, 20866851), (27, 6955617), (81, 2318539), (89, 2110131), (109, 1722951), (239, 785781), (267, 703377), (327, 574317), (717, 261927), (801, 234459), (981, 191439), (2151, 87309), (2403, 78153), (2943, 63813), (6453, 29103), (7209, 26051), (8829, 21271), (9701, 19359)]