20825265

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{239}}^1$

素因数の和:441

約数の個数: 32

約数和(自身を含む): 34583040

約数和(自身を除く): 13757775

約数列:

[1, 3, 5, 15, 37, 111, 157, 185, 239, 471, 555, 717, 785, 1195, 2355, 3585, 5809, 8843, 17427, 26529, 29045, 37523, 44215, 87135, 112569, 132645, 187615, 562845, 1388351, 4165053, 6941755, 20825265]

約数ペア:

[(1, 20825265), (3, 6941755), (5, 4165053), (15, 1388351), (37, 562845), (111, 187615), (157, 132645), (185, 112569), (239, 87135), (471, 44215), (555, 37523), (717, 29045), (785, 26529), (1195, 17427), (2355, 8843), (3585, 5809)]