19999836

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{17921}}^1$

素因数の和:17962

約数の個数: 36

約数和(自身を含む): 52188864

約数和(自身を除く): 32189028

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 62, 93, 124, 186, 279, 372, 558, 1116, 17921, 35842, 53763, 71684, 107526, 161289, 215052, 322578, 555551, 645156, 1111102, 1666653, 2222204, 3333306, 4999959, 6666612, 9999918, 19999836]

約数ペア:

[(1, 19999836), (2, 9999918), (3, 6666612), (4, 4999959), (6, 3333306), (9, 2222204), (12, 1666653), (18, 1111102), (31, 645156), (36, 555551), (62, 322578), (93, 215052), (124, 161289), (186, 107526), (279, 71684), (372, 53763), (558, 35842), (1116, 17921)]