21445755

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{2273}}^1$

素因数の和:2335

約数の個数: 32

約数和(自身を含む): 37329984

約数和(自身を除く): 15884229

約数列:

[1, 3, 5, 15, 17, 37, 51, 85, 111, 185, 255, 555, 629, 1887, 2273, 3145, 6819, 9435, 11365, 34095, 38641, 84101, 115923, 193205, 252303, 420505, 579615, 1261515, 1429717, 4289151, 7148585, 21445755]

約数ペア:

[(1, 21445755), (3, 7148585), (5, 4289151), (15, 1429717), (17, 1261515), (37, 579615), (51, 420505), (85, 252303), (111, 193205), (185, 115923), (255, 84101), (555, 38641), (629, 34095), (1887, 11365), (2273, 9435), (3145, 6819)]