20977672

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{4759}}^1$

素因数の和:4813

約数の個数: 32

約数和(自身を含む): 42840000

約数和(自身を除く): 21862328

約数列:

[1, 2, 4, 8, 19, 29, 38, 58, 76, 116, 152, 232, 551, 1102, 2204, 4408, 4759, 9518, 19036, 38072, 90421, 138011, 180842, 276022, 361684, 552044, 723368, 1104088, 2622209, 5244418, 10488836, 20977672]

約数ペア:

[(1, 20977672), (2, 10488836), (4, 5244418), (8, 2622209), (19, 1104088), (29, 723368), (38, 552044), (58, 361684), (76, 276022), (116, 180842), (152, 138011), (232, 90421), (551, 38072), (1102, 19036), (2204, 9518), (4408, 4759)]