87870861

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{7019}}^1$

素因数の和:7145

約数の個数: 24

約数和(自身を含む): 137985120

約数和(自身を除く): 50114259

約数列:

[1, 3, 9, 13, 39, 107, 117, 321, 963, 1391, 4173, 7019, 12519, 21057, 63171, 91247, 273741, 751033, 821223, 2253099, 6759297, 9763429, 29290287, 87870861]

約数ペア:

[(1, 87870861), (3, 29290287), (9, 9763429), (13, 6759297), (39, 2253099), (107, 821223), (117, 751033), (321, 273741), (963, 91247), (1391, 63171), (4173, 21057), (7019, 12519)]