20718174

素因数分解:

$2^1\times 3^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{613}}^1$

素因数の和:792

約数の個数: 32

約数和(自身を含む): 42793344

約数和(自身を除く): 22075170

約数列:

[1, 2, 3, 6, 43, 86, 129, 131, 258, 262, 393, 613, 786, 1226, 1839, 3678, 5633, 11266, 16899, 26359, 33798, 52718, 79077, 80303, 158154, 160606, 240909, 481818, 3453029, 6906058, 10359087, 20718174]

約数ペア:

[(1, 20718174), (2, 10359087), (3, 6906058), (6, 3453029), (43, 481818), (86, 240909), (129, 160606), (131, 158154), (258, 80303), (262, 79077), (393, 52718), (613, 33798), (786, 26359), (1226, 16899), (1839, 11266), (3678, 5633)]