19982756

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{241}}^1\times {\mathrm{1091}}^1$

素因数の和:1355

約数の個数: 24

約数和(自身を含む): 36996960

約数和(自身を除く): 17014204

約数列:

[1, 2, 4, 19, 38, 76, 241, 482, 964, 1091, 2182, 4364, 4579, 9158, 18316, 20729, 41458, 82916, 262931, 525862, 1051724, 4995689, 9991378, 19982756]

約数ペア:

[(1, 19982756), (2, 9991378), (4, 4995689), (19, 1051724), (38, 525862), (76, 262931), (241, 82916), (482, 41458), (964, 20729), (1091, 18316), (2182, 9158), (4364, 4579)]