20879895

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{541}}^1$

素因数の和:663

約数の個数: 32

約数和(自身を含む): 34965504

約数和(自身を除く): 14085609

約数列:

[1, 3, 5, 15, 31, 83, 93, 155, 249, 415, 465, 541, 1245, 1623, 2573, 2705, 7719, 8115, 12865, 16771, 38595, 44903, 50313, 83855, 134709, 224515, 251565, 673545, 1391993, 4175979, 6959965, 20879895]

約数ペア:

[(1, 20879895), (3, 6959965), (5, 4175979), (15, 1391993), (31, 673545), (83, 251565), (93, 224515), (155, 134709), (249, 83855), (415, 50313), (465, 44903), (541, 38595), (1245, 16771), (1623, 12865), (2573, 8115), (2705, 7719)]