7947891

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1$

素因数の和:252

約数の個数: 48

約数和(自身を含む): 14309568

約数和(自身を除く): 6361677

約数列:

[1, 3, 7, 9, 17, 21, 41, 51, 63, 119, 123, 153, 181, 287, 357, 369, 543, 697, 861, 1071, 1267, 1629, 2091, 2583, 3077, 3801, 4879, 6273, 7421, 9231, 11403, 14637, 21539, 22263, 27693, 43911, 51947, 64617, 66789, 126157, 155841, 193851, 378471, 467523, 883099, 1135413, 2649297, 7947891]

約数ペア:

[(1, 7947891), (3, 2649297), (7, 1135413), (9, 883099), (17, 467523), (21, 378471), (41, 193851), (51, 155841), (63, 126157), (119, 66789), (123, 64617), (153, 51947), (181, 43911), (287, 27693), (357, 22263), (369, 21539), (543, 14637), (697, 11403), (861, 9231), (1071, 7421), (1267, 6273), (1629, 4879), (2091, 3801), (2583, 3077)]