21422385

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{11071}}^1$

素因数の和:11125

約数の個数: 24

約数和(自身を含む): 37999104

約数和(自身を除く): 16576719

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 1935, 11071, 33213, 55355, 99639, 166065, 476053, 498195, 1428159, 2380265, 4284477, 7140795, 21422385]

約数ペア:

[(1, 21422385), (3, 7140795), (5, 4284477), (9, 2380265), (15, 1428159), (43, 498195), (45, 476053), (129, 166065), (215, 99639), (387, 55355), (645, 33213), (1935, 11071)]