19984332

素因数分解:

$2^2\times 3^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{1187}}^1$

素因数の和:1278

約数の個数: 48

約数和(自身を含む): 49496832

約数和(自身を除く): 29512500

約数列:

[1, 2, 3, 4, 6, 12, 23, 46, 61, 69, 92, 122, 138, 183, 244, 276, 366, 732, 1187, 1403, 2374, 2806, 3561, 4209, 4748, 5612, 7122, 8418, 14244, 16836, 27301, 54602, 72407, 81903, 109204, 144814, 163806, 217221, 289628, 327612, 434442, 868884, 1665361, 3330722, 4996083, 6661444, 9992166, 19984332]

約数ペア:

[(1, 19984332), (2, 9992166), (3, 6661444), (4, 4996083), (6, 3330722), (12, 1665361), (23, 868884), (46, 434442), (61, 327612), (69, 289628), (92, 217221), (122, 163806), (138, 144814), (183, 109204), (244, 81903), (276, 72407), (366, 54602), (732, 27301), (1187, 16836), (1403, 14244), (2374, 8418), (2806, 7122), (3561, 5612), (4209, 4748)]