20686585773

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{13874303}}^1$

素因数の和:13874384

約数の個数: 16

約数和(自身を含む): 31966396416

約数和(自身を除く): 11279810643

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 13874303, 41622909, 97120121, 291360363, 985075513, 2955226539, 6895528591, 20686585773]

約数ペア:

[(1, 20686585773), (3, 6895528591), (7, 2955226539), (21, 985075513), (71, 291360363), (213, 97120121), (497, 41622909), (1491, 13874303)]