18768724

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{61}}^2\times {\mathrm{97}}^1$

素因数の和:236

約数の個数: 36

約数和(自身を含む): 36331932

約数和(自身を除く): 17563208

約数列:

[1, 2, 4, 13, 26, 52, 61, 97, 122, 194, 244, 388, 793, 1261, 1586, 2522, 3172, 3721, 5044, 5917, 7442, 11834, 14884, 23668, 48373, 76921, 96746, 153842, 193492, 307684, 360937, 721874, 1443748, 4692181, 9384362, 18768724]

約数ペア:

[(1, 18768724), (2, 9384362), (4, 4692181), (13, 1443748), (26, 721874), (52, 360937), (61, 307684), (97, 193492), (122, 153842), (194, 96746), (244, 76921), (388, 48373), (793, 23668), (1261, 14884), (1586, 11834), (2522, 7442), (3172, 5917), (3721, 5044)]