21184683

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{277}}^1$

素因数の和:383

約数の個数: 32

約数和(自身を含む): 31945536

約数和(自身を除く): 10760853

約数列:

[1, 3, 13, 37, 39, 53, 111, 159, 277, 481, 689, 831, 1443, 1961, 2067, 3601, 5883, 10249, 10803, 14681, 25493, 30747, 44043, 76479, 133237, 190853, 399711, 543197, 572559, 1629591, 7061561, 21184683]

約数ペア:

[(1, 21184683), (3, 7061561), (13, 1629591), (37, 572559), (39, 543197), (53, 399711), (111, 190853), (159, 133237), (277, 76479), (481, 44043), (689, 30747), (831, 25493), (1443, 14681), (1961, 10803), (2067, 10249), (3601, 5883)]