21000736503

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{1750499}}^1$

素因数の和:1750579

約数の個数: 24

約数和(自身を含む): 32041152000

約数和(自身を除く): 11040415497

約数列:

[1, 3, 9, 31, 43, 93, 129, 279, 387, 1333, 3999, 11997, 1750499, 5251497, 15754491, 54265469, 75271457, 162796407, 225814371, 488389221, 677443113, 2333415167, 7000245501, 21000736503]

約数ペア:

[(1, 21000736503), (3, 7000245501), (9, 2333415167), (31, 677443113), (43, 488389221), (93, 225814371), (129, 162796407), (279, 75271457), (387, 54265469), (1333, 15754491), (3999, 5251497), (11997, 1750499)]