20554358

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{13159}}^1$

素因数の和:13243

約数の個数: 16

約数和(自身を含む): 34110720

約数和(自身を除く): 13556362

約数列:

[1, 2, 11, 22, 71, 142, 781, 1562, 13159, 26318, 144749, 289498, 934289, 1868578, 10277179, 20554358]

約数ペア:

[(1, 20554358), (2, 10277179), (11, 1868578), (22, 934289), (71, 289498), (142, 144749), (781, 26318), (1562, 13159)]