19145133

素因数分解:

$3^3\times 7^2\times {\mathrm{29}}^1\times {\mathrm{499}}^1$

素因数の和:551

約数の個数: 48

約数和(自身を含む): 34200000

約数和(自身を除く): 15054867

約数列:

[1, 3, 7, 9, 21, 27, 29, 49, 63, 87, 147, 189, 203, 261, 441, 499, 609, 783, 1323, 1421, 1497, 1827, 3493, 4263, 4491, 5481, 10479, 12789, 13473, 14471, 24451, 31437, 38367, 43413, 73353, 94311, 101297, 130239, 220059, 303891, 390717, 660177, 709079, 911673, 2127237, 2735019, 6381711, 19145133]

約数ペア:

[(1, 19145133), (3, 6381711), (7, 2735019), (9, 2127237), (21, 911673), (27, 709079), (29, 660177), (49, 390717), (63, 303891), (87, 220059), (147, 130239), (189, 101297), (203, 94311), (261, 73353), (441, 43413), (499, 38367), (609, 31437), (783, 24451), (1323, 14471), (1421, 13473), (1497, 12789), (1827, 10479), (3493, 5481), (4263, 4491)]