19943955

素因数分解:

$3^3\times 5^1\times {\mathrm{241}}^1\times {\mathrm{613}}^1$

素因数の和:868

約数の個数: 32

約数和(自身を含む): 35661120

約数和(自身を除く): 15717165

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 241, 613, 723, 1205, 1839, 2169, 3065, 3615, 5517, 6507, 9195, 10845, 16551, 27585, 32535, 82755, 147733, 443199, 738665, 1329597, 2215995, 3988791, 6647985, 19943955]

約数ペア:

[(1, 19943955), (3, 6647985), (5, 3988791), (9, 2215995), (15, 1329597), (27, 738665), (45, 443199), (135, 147733), (241, 82755), (613, 32535), (723, 27585), (1205, 16551), (1839, 10845), (2169, 9195), (3065, 6507), (3615, 5517)]