81272793

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{953}}^1$

素因数の和:1125

約数の個数: 32

約数和(自身を含む): 128950272

約数和(自身を除く): 47677479

約数列:

[1, 3, 7, 21, 31, 93, 131, 217, 393, 651, 917, 953, 2751, 2859, 4061, 6671, 12183, 20013, 28427, 29543, 85281, 88629, 124843, 206801, 374529, 620403, 873901, 2621703, 3870133, 11610399, 27090931, 81272793]

約数ペア:

[(1, 81272793), (3, 27090931), (7, 11610399), (21, 3870133), (31, 2621703), (93, 873901), (131, 620403), (217, 374529), (393, 206801), (651, 124843), (917, 88629), (953, 85281), (2751, 29543), (2859, 28427), (4061, 20013), (6671, 12183)]