28108809

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{349}}^1$

素因数の和:534

約数の個数: 32

約数和(自身を含む): 44240000

約数和(自身を除く): 16131191

約数列:

[1, 3, 9, 19, 27, 57, 157, 171, 349, 471, 513, 1047, 1413, 2983, 3141, 4239, 6631, 8949, 9423, 19893, 26847, 54793, 59679, 80541, 164379, 179037, 493137, 1041067, 1479411, 3123201, 9369603, 28108809]

約数ペア:

[(1, 28108809), (3, 9369603), (9, 3123201), (19, 1479411), (27, 1041067), (57, 493137), (157, 179037), (171, 164379), (349, 80541), (471, 59679), (513, 54793), (1047, 26847), (1413, 19893), (2983, 9423), (3141, 8949), (4239, 6631)]