31072977

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1283}}^1$

素因数の和:1331

約数の個数: 40

約数和(自身を含む): 52202304

約数和(自身を除く): 21129327

約数列:

[1, 3, 9, 13, 23, 27, 39, 69, 81, 117, 207, 299, 351, 621, 897, 1053, 1283, 1863, 2691, 3849, 8073, 11547, 16679, 24219, 29509, 34641, 50037, 88527, 103923, 150111, 265581, 383617, 450333, 796743, 1150851, 1350999, 2390229, 3452553, 10357659, 31072977]

約数ペア:

[(1, 31072977), (3, 10357659), (9, 3452553), (13, 2390229), (23, 1350999), (27, 1150851), (39, 796743), (69, 450333), (81, 383617), (117, 265581), (207, 150111), (299, 103923), (351, 88527), (621, 50037), (897, 34641), (1053, 29509), (1283, 24219), (1863, 16679), (2691, 11547), (3849, 8073)]