21359852

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{139}}^1\times {\mathrm{937}}^1$

素因数の和:1121

約数の個数: 24

約数和(自身を含む): 38608080

約数和(自身を除く): 17248228

約数列:

[1, 2, 4, 41, 82, 139, 164, 278, 556, 937, 1874, 3748, 5699, 11398, 22796, 38417, 76834, 130243, 153668, 260486, 520972, 5339963, 10679926, 21359852]

約数ペア:

[(1, 21359852), (2, 10679926), (4, 5339963), (41, 520972), (82, 260486), (139, 153668), (164, 130243), (278, 76834), (556, 38417), (937, 22796), (1874, 11398), (3748, 5699)]