19986285

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{1361}}^1$

素因数の和:1469

約数の個数: 32

約数和(自身を含む): 35303040

約数和(自身を除く): 15316755

約数列:

[1, 3, 5, 11, 15, 33, 55, 89, 165, 267, 445, 979, 1335, 1361, 2937, 4083, 4895, 6805, 14685, 14971, 20415, 44913, 74855, 121129, 224565, 363387, 605645, 1332419, 1816935, 3997257, 6662095, 19986285]

約数ペア:

[(1, 19986285), (3, 6662095), (5, 3997257), (11, 1816935), (15, 1332419), (33, 605645), (55, 363387), (89, 224565), (165, 121129), (267, 74855), (445, 44913), (979, 20415), (1335, 14971), (1361, 14685), (2937, 6805), (4083, 4895)]