399938

素因数分解:

$2^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{53}}^1$

素因数の和:87

約数の個数: 32

約数和(自身を含む): 777600

約数和(自身を除く): 377662

約数列:

[1, 2, 7, 11, 14, 22, 49, 53, 77, 98, 106, 154, 343, 371, 539, 583, 686, 742, 1078, 1166, 2597, 3773, 4081, 5194, 7546, 8162, 18179, 28567, 36358, 57134, 199969, 399938]

約数ペア:

[(1, 399938), (2, 199969), (7, 57134), (11, 36358), (14, 28567), (22, 18179), (49, 8162), (53, 7546), (77, 5194), (98, 4081), (106, 3773), (154, 2597), (343, 1166), (371, 1078), (539, 742), (583, 686)]