156720447

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{521}}^1\times {\mathrm{857}}^1$

素因数の和:1400

約数の個数: 32

約数和(自身を含む): 250810560

約数和(自身を除く): 94090113

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 521, 857, 1563, 2571, 4689, 6773, 7713, 11141, 14067, 20319, 23139, 33423, 60957, 100269, 182871, 300807, 446497, 1339491, 4018473, 5804461, 12055419, 17413383, 52240149, 156720447]

約数ペア:

[(1, 156720447), (3, 52240149), (9, 17413383), (13, 12055419), (27, 5804461), (39, 4018473), (117, 1339491), (351, 446497), (521, 300807), (857, 182871), (1563, 100269), (2571, 60957), (4689, 33423), (6773, 23139), (7713, 20319), (11141, 14067)]