21977325

素因数分解:

$3^4\times 5^2\times {\mathrm{10853}}^1$

素因数の和:10875

約数の個数: 30

約数和(自身を含む): 40713354

約数和(自身を除く): 18736029

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 405, 675, 2025, 10853, 32559, 54265, 97677, 162795, 271325, 293031, 488385, 813975, 879093, 1465155, 2441925, 4395465, 7325775, 21977325]

約数ペア:

[(1, 21977325), (3, 7325775), (5, 4395465), (9, 2441925), (15, 1465155), (25, 879093), (27, 813975), (45, 488385), (75, 293031), (81, 271325), (135, 162795), (225, 97677), (405, 54265), (675, 32559), (2025, 10853)]