19846908

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{12821}}^1$

素因数の和:12874

約数の個数: 36

約数和(自身を含む): 51339288

約数和(自身を除く): 31492380

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 86, 129, 172, 258, 387, 516, 774, 1548, 12821, 25642, 38463, 51284, 76926, 115389, 153852, 230778, 461556, 551303, 1102606, 1653909, 2205212, 3307818, 4961727, 6615636, 9923454, 19846908]

約数ペア:

[(1, 19846908), (2, 9923454), (3, 6615636), (4, 4961727), (6, 3307818), (9, 2205212), (12, 1653909), (18, 1102606), (36, 551303), (43, 461556), (86, 230778), (129, 153852), (172, 115389), (258, 76926), (387, 51284), (516, 38463), (774, 25642), (1548, 12821)]