19653845

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1$

素因数の和:245

約数の個数: 32

約数和(自身を含む): 26265600

約数和(自身を除く): 6611755

約数列:

[1, 5, 23, 31, 37, 115, 149, 155, 185, 713, 745, 851, 1147, 3427, 3565, 4255, 4619, 5513, 5735, 17135, 23095, 26381, 27565, 106237, 126799, 131905, 170903, 531185, 633995, 854515, 3930769, 19653845]

約数ペア:

[(1, 19653845), (5, 3930769), (23, 854515), (31, 633995), (37, 531185), (115, 170903), (149, 131905), (155, 126799), (185, 106237), (713, 27565), (745, 26381), (851, 23095), (1147, 17135), (3427, 5735), (3565, 5513), (4255, 4619)]