81712869

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{4049}}^1$

素因数の和:4121

約数の個数: 24

約数和(自身を含む): 128692800

約数和(自身を除く): 46979931

約数列:

[1, 3, 7, 21, 31, 93, 217, 651, 961, 2883, 4049, 6727, 12147, 20181, 28343, 85029, 125519, 376557, 878633, 2635899, 3891089, 11673267, 27237623, 81712869]

約数ペア:

[(1, 81712869), (3, 27237623), (7, 11673267), (21, 3891089), (31, 2635899), (93, 878633), (217, 376557), (651, 125519), (961, 85029), (2883, 28343), (4049, 20181), (6727, 12147)]