20811723

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{269}}^1$

素因数の和:367

約数の個数: 32

約数和(自身を含む): 31026240

約数和(自身を除く): 10214517

約数列:

[1, 3, 17, 37, 41, 51, 111, 123, 269, 629, 697, 807, 1517, 1887, 2091, 4551, 4573, 9953, 11029, 13719, 25789, 29859, 33087, 77367, 169201, 187493, 408073, 507603, 562479, 1224219, 6937241, 20811723]

約数ペア:

[(1, 20811723), (3, 6937241), (17, 1224219), (37, 562479), (41, 507603), (51, 408073), (111, 187493), (123, 169201), (269, 77367), (629, 33087), (697, 29859), (807, 25789), (1517, 13719), (1887, 11029), (2091, 9953), (4551, 4573)]