81741285

素因数分解:

$3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{20879}}^1$

素因数の和:20922

約数の個数: 32

約数和(自身を含む): 150336000

約数和(自身を除く): 68594715

約数列:

[1, 3, 5, 9, 15, 27, 29, 45, 87, 135, 145, 261, 435, 783, 1305, 3915, 20879, 62637, 104395, 187911, 313185, 563733, 605491, 939555, 1816473, 2818665, 3027455, 5449419, 9082365, 16348257, 27247095, 81741285]

約数ペア:

[(1, 81741285), (3, 27247095), (5, 16348257), (9, 9082365), (15, 5449419), (27, 3027455), (29, 2818665), (45, 1816473), (87, 939555), (135, 605491), (145, 563733), (261, 313185), (435, 187911), (783, 104395), (1305, 62637), (3915, 20879)]