138398547

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{2789}}^1$

素因数の和:2955

約数の個数: 32

約数和(自身を含む): 224985600

約数和(自身を除く): 86587053

約数列:

[1, 3, 7, 17, 21, 51, 119, 139, 357, 417, 973, 2363, 2789, 2919, 7089, 8367, 16541, 19523, 47413, 49623, 58569, 142239, 331891, 387671, 995673, 1163013, 2713697, 6590407, 8141091, 19771221, 46132849, 138398547]

約数ペア:

[(1, 138398547), (3, 46132849), (7, 19771221), (17, 8141091), (21, 6590407), (51, 2713697), (119, 1163013), (139, 995673), (357, 387671), (417, 331891), (973, 142239), (2363, 58569), (2789, 49623), (2919, 47413), (7089, 19523), (8367, 16541)]