51881781

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1\times {\mathrm{401}}^1$

素因数の和:573

約数の個数: 32

約数和(自身を含む): 81351936

約数和(自身を除く): 29470155

約数列:

[1, 3, 7, 21, 61, 101, 183, 303, 401, 427, 707, 1203, 1281, 2121, 2807, 6161, 8421, 18483, 24461, 40501, 43127, 73383, 121503, 129381, 171227, 283507, 513681, 850521, 2470561, 7411683, 17293927, 51881781]

約数ペア:

[(1, 51881781), (3, 17293927), (7, 7411683), (21, 2470561), (61, 850521), (101, 513681), (183, 283507), (303, 171227), (401, 129381), (427, 121503), (707, 73383), (1203, 43127), (1281, 40501), (2121, 24461), (2807, 18483), (6161, 8421)]