20165704

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{2731}}^1$

素因数の和:2821

約数の個数: 32

約数和(自身を含む): 41307840

約数和(自身を除く): 21142136

約数列:

[1, 2, 4, 8, 13, 26, 52, 71, 104, 142, 284, 568, 923, 1846, 2731, 3692, 5462, 7384, 10924, 21848, 35503, 71006, 142012, 193901, 284024, 387802, 775604, 1551208, 2520713, 5041426, 10082852, 20165704]

約数ペア:

[(1, 20165704), (2, 10082852), (4, 5041426), (8, 2520713), (13, 1551208), (26, 775604), (52, 387802), (71, 284024), (104, 193901), (142, 142012), (284, 71006), (568, 35503), (923, 21848), (1846, 10924), (2731, 7384), (3692, 5462)]