18505448

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{2917}}^1$

素因数の和:2997

約数の個数: 32

約数和(自身を含む): 37992360

約数和(自身を除く): 19486912

約数列:

[1, 2, 4, 8, 13, 26, 52, 61, 104, 122, 244, 488, 793, 1586, 2917, 3172, 5834, 6344, 11668, 23336, 37921, 75842, 151684, 177937, 303368, 355874, 711748, 1423496, 2313181, 4626362, 9252724, 18505448]

約数ペア:

[(1, 18505448), (2, 9252724), (4, 4626362), (8, 2313181), (13, 1423496), (26, 711748), (52, 355874), (61, 303368), (104, 177937), (122, 151684), (244, 75842), (488, 37921), (793, 23336), (1586, 11668), (2917, 6344), (3172, 5834)]