21290147229

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{12695377}}^1$

素因数の和:12695436

約数の個数: 16

約数和(自身を含む): 31281411392

約数和(自身を除く): 9991264163

約数列:

[1, 3, 13, 39, 43, 129, 559, 1677, 12695377, 38086131, 165039901, 495119703, 545901211, 1637703633, 7096715743, 21290147229]

約数ペア:

[(1, 21290147229), (3, 7096715743), (13, 1637703633), (39, 545901211), (43, 495119703), (129, 165039901), (559, 38086131), (1677, 12695377)]