28730079

素因数分解:

$3^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{2141}}^1$

素因数の和:2228

約数の個数: 32

約数和(自身を含む): 49351680

約数和(自身を除く): 20621601

約数列:

[1, 3, 7, 9, 21, 27, 63, 71, 189, 213, 497, 639, 1491, 1917, 2141, 4473, 6423, 13419, 14987, 19269, 44961, 57807, 134883, 152011, 404649, 456033, 1064077, 1368099, 3192231, 4104297, 9576693, 28730079]

約数ペア:

[(1, 28730079), (3, 9576693), (7, 4104297), (9, 3192231), (21, 1368099), (27, 1064077), (63, 456033), (71, 404649), (189, 152011), (213, 134883), (497, 57807), (639, 44961), (1491, 19269), (1917, 14987), (2141, 13419), (4473, 6423)]