81215836

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{853}}^1\times {\mathrm{1831}}^1$

素因数の和:2701

約数の個数: 24

約数和(自身を含む): 153323744

約数和(自身を除く): 72107908

約数列:

[1, 2, 4, 13, 26, 52, 853, 1706, 1831, 3412, 3662, 7324, 11089, 22178, 23803, 44356, 47606, 95212, 1561843, 3123686, 6247372, 20303959, 40607918, 81215836]

約数ペア:

[(1, 81215836), (2, 40607918), (4, 20303959), (13, 6247372), (26, 3123686), (52, 1561843), (853, 95212), (1706, 47606), (1831, 44356), (3412, 23803), (3662, 22178), (7324, 11089)]