20757645

素因数分解:

$3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{5839}}^1$

素因数の和:5929

約数の個数: 24

約数和(自身を含む): 36441600

約数和(自身を除く): 15683955

約数列:

[1, 3, 5, 9, 15, 45, 79, 237, 395, 711, 1185, 3555, 5839, 17517, 29195, 52551, 87585, 262755, 461281, 1383843, 2306405, 4151529, 6919215, 20757645]

約数ペア:

[(1, 20757645), (3, 6919215), (5, 4151529), (9, 2306405), (15, 1383843), (45, 461281), (79, 262755), (237, 87585), (395, 52551), (711, 29195), (1185, 17517), (3555, 5839)]