258561289

素因数分解:

$7^4\times {\mathrm{113}}^1\times {\mathrm{953}}^1$

素因数の和:1094

約数の個数: 20

約数和(自身を含む): 304625556

約数和(自身を除く): 46064267

約数列:

[1, 7, 49, 113, 343, 791, 953, 2401, 5537, 6671, 38759, 46697, 107689, 271313, 326879, 753823, 2288153, 5276761, 36937327, 258561289]

約数ペア:

[(1, 258561289), (7, 36937327), (49, 5276761), (113, 2288153), (343, 753823), (791, 326879), (953, 271313), (2401, 107689), (5537, 46697), (6671, 38759)]