21817544

素因数分解:

$2^3\times 7^3\times {\mathrm{7951}}^1$

素因数の和:7978

約数の個数: 32

約数和(自身を含む): 47712000

約数和(自身を除く): 25894456

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 343, 392, 686, 1372, 2744, 7951, 15902, 31804, 55657, 63608, 111314, 222628, 389599, 445256, 779198, 1558396, 2727193, 3116792, 5454386, 10908772, 21817544]

約数ペア:

[(1, 21817544), (2, 10908772), (4, 5454386), (7, 3116792), (8, 2727193), (14, 1558396), (28, 779198), (49, 445256), (56, 389599), (98, 222628), (196, 111314), (343, 63608), (392, 55657), (686, 31804), (1372, 15902), (2744, 7951)]