21261264

素因数分解:

$2^4\times 3^1\times {\mathrm{43}}^1\times {\mathrm{10301}}^1$

素因数の和:10355

約数の個数: 40

約数和(自身を含む): 56207712

約数和(自身を除く): 34946448

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 43, 48, 86, 129, 172, 258, 344, 516, 688, 1032, 2064, 10301, 20602, 30903, 41204, 61806, 82408, 123612, 164816, 247224, 442943, 494448, 885886, 1328829, 1771772, 2657658, 3543544, 5315316, 7087088, 10630632, 21261264]

約数ペア:

[(1, 21261264), (2, 10630632), (3, 7087088), (4, 5315316), (6, 3543544), (8, 2657658), (12, 1771772), (16, 1328829), (24, 885886), (43, 494448), (48, 442943), (86, 247224), (129, 164816), (172, 123612), (258, 82408), (344, 61806), (516, 41204), (688, 30903), (1032, 20602), (2064, 10301)]