21243204

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{13723}}^1$

素因数の和:13776

約数の個数: 36

約数和(自身を含む): 54950896

約数和(自身を除く): 33707692

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 86, 129, 172, 258, 387, 516, 774, 1548, 13723, 27446, 41169, 54892, 82338, 123507, 164676, 247014, 494028, 590089, 1180178, 1770267, 2360356, 3540534, 5310801, 7081068, 10621602, 21243204]

約数ペア:

[(1, 21243204), (2, 10621602), (3, 7081068), (4, 5310801), (6, 3540534), (9, 2360356), (12, 1770267), (18, 1180178), (36, 590089), (43, 494028), (86, 247014), (129, 164676), (172, 123507), (258, 82338), (387, 54892), (516, 41169), (774, 27446), (1548, 13723)]