20446665

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{443}}^1$

素因数の和:649

約数の個数: 32

約数和(自身を含む): 34909056

約数和(自身を除く): 14462391

約数列:

[1, 3, 5, 15, 17, 51, 85, 181, 255, 443, 543, 905, 1329, 2215, 2715, 3077, 6645, 7531, 9231, 15385, 22593, 37655, 46155, 80183, 112965, 240549, 400915, 1202745, 1363111, 4089333, 6815555, 20446665]

約数ペア:

[(1, 20446665), (3, 6815555), (5, 4089333), (15, 1363111), (17, 1202745), (51, 400915), (85, 240549), (181, 112965), (255, 80183), (443, 46155), (543, 37655), (905, 22593), (1329, 15385), (2215, 9231), (2715, 7531), (3077, 6645)]