20749207906

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{78004541}}^1$

素因数の和:78004569

約数の個数: 16

約数和(自身を含む): 37442180160

約数和(自身を除く): 16692972254

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 78004541, 156009082, 546031787, 1092063574, 1482086279, 2964172558, 10374603953, 20749207906]

約数ペア:

[(1, 20749207906), (2, 10374603953), (7, 2964172558), (14, 1482086279), (19, 1092063574), (38, 546031787), (133, 156009082), (266, 78004541)]