28293759

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{541}}^1$

素因数の和:712

約数の個数: 32

約数和(自身を含む): 45528000

約数和(自身を除く): 17234241

約数列:

[1, 3, 9, 13, 27, 39, 117, 149, 351, 447, 541, 1341, 1623, 1937, 4023, 4869, 5811, 7033, 14607, 17433, 21099, 52299, 63297, 80609, 189891, 241827, 725481, 1047917, 2176443, 3143751, 9431253, 28293759]

約数ペア:

[(1, 28293759), (3, 9431253), (9, 3143751), (13, 2176443), (27, 1047917), (39, 725481), (117, 241827), (149, 189891), (351, 80609), (447, 63297), (541, 52299), (1341, 21099), (1623, 17433), (1937, 14607), (4023, 7033), (4869, 5811)]