19401858

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{3581}}^1$

素因数の和:3639

約数の個数: 48

約数和(自身を含む): 49173696

約数和(自身を除く): 29771838

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 43, 63, 86, 126, 129, 258, 301, 387, 602, 774, 903, 1806, 2709, 3581, 5418, 7162, 10743, 21486, 25067, 32229, 50134, 64458, 75201, 150402, 153983, 225603, 307966, 451206, 461949, 923898, 1077881, 1385847, 2155762, 2771694, 3233643, 6467286, 9700929, 19401858]

約数ペア:

[(1, 19401858), (2, 9700929), (3, 6467286), (6, 3233643), (7, 2771694), (9, 2155762), (14, 1385847), (18, 1077881), (21, 923898), (42, 461949), (43, 451206), (63, 307966), (86, 225603), (126, 153983), (129, 150402), (258, 75201), (301, 64458), (387, 50134), (602, 32229), (774, 25067), (903, 21486), (1806, 10743), (2709, 7162), (3581, 5418)]