28642691

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{127}}^1$

素因数の和:275

約数の個数: 32

約数和(自身を含む): 37601280

約数和(自身を除く): 8958589

約数列:

[1, 7, 11, 29, 77, 101, 127, 203, 319, 707, 889, 1111, 1397, 2233, 2929, 3683, 7777, 9779, 12827, 20503, 25781, 32219, 40513, 89789, 141097, 225533, 283591, 371983, 987679, 2603881, 4091813, 28642691]

約数ペア:

[(1, 28642691), (7, 4091813), (11, 2603881), (29, 987679), (77, 371983), (101, 283591), (127, 225533), (203, 141097), (319, 89789), (707, 40513), (889, 32219), (1111, 25781), (1397, 20503), (2233, 12827), (2929, 9779), (3683, 7777)]