21787051

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{251}}^1\times {\mathrm{607}}^1$

素因数の和:882

約数の個数: 16

約数和(自身を含む): 25740288

約数和(自身を除く): 3953237

約数列:

[1, 11, 13, 143, 251, 607, 2761, 3263, 6677, 7891, 35893, 86801, 152357, 1675927, 1980641, 21787051]

約数ペア:

[(1, 21787051), (11, 1980641), (13, 1675927), (143, 152357), (251, 86801), (607, 35893), (2761, 7891), (3263, 6677)]