21403041

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{173}}^1$

素因数の和:373

約数の個数: 32

約数和(自身を含む): 32873472

約数和(自身を除く): 11470431

約数列:

[1, 3, 11, 23, 33, 69, 163, 173, 253, 489, 519, 759, 1793, 1903, 3749, 3979, 5379, 5709, 11247, 11937, 28199, 41239, 43769, 84597, 123717, 131307, 310189, 648577, 930567, 1945731, 7134347, 21403041]

約数ペア:

[(1, 21403041), (3, 7134347), (11, 1945731), (23, 930567), (33, 648577), (69, 310189), (163, 131307), (173, 123717), (253, 84597), (489, 43769), (519, 41239), (759, 28199), (1793, 11937), (1903, 11247), (3749, 5709), (3979, 5379)]