21064299615

素因数分解:

$3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{4217077}}^1$

素因数の和:4217128

約数の個数: 32

約数和(自身を含む): 38459751360

約数和(自身を除く): 17395451745

約数列:

[1, 3, 5, 9, 15, 27, 37, 45, 111, 135, 185, 333, 555, 999, 1665, 4995, 4217077, 12651231, 21085385, 37953693, 63256155, 113861079, 156031849, 189768465, 468095547, 569305395, 780159245, 1404286641, 2340477735, 4212859923, 7021433205, 21064299615]

約数ペア:

[(1, 21064299615), (3, 7021433205), (5, 4212859923), (9, 2340477735), (15, 1404286641), (27, 780159245), (37, 569305395), (45, 468095547), (111, 189768465), (135, 156031849), (185, 113861079), (333, 63256155), (555, 37953693), (999, 21085385), (1665, 12651231), (4995, 4217077)]