21748485

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{1481}}^1$

素因数の和:1589

約数の個数: 32

約数和(自身を含む): 38413440

約数和(自身を除く): 16664955

約数列:

[1, 3, 5, 11, 15, 33, 55, 89, 165, 267, 445, 979, 1335, 1481, 2937, 4443, 4895, 7405, 14685, 16291, 22215, 48873, 81455, 131809, 244365, 395427, 659045, 1449899, 1977135, 4349697, 7249495, 21748485]

約数ペア:

[(1, 21748485), (3, 7249495), (5, 4349697), (11, 1977135), (15, 1449899), (33, 659045), (55, 395427), (89, 244365), (165, 131809), (267, 81455), (445, 48873), (979, 22215), (1335, 16291), (1481, 14685), (2937, 7405), (4443, 4895)]