21130538

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{73883}}^1$

素因数の和:73909

約数の個数: 16

約数和(自身を含む): 37237536

約数和(自身を除く): 16106998

約数列:

[1, 2, 11, 13, 22, 26, 143, 286, 73883, 147766, 812713, 960479, 1625426, 1920958, 10565269, 21130538]

約数ペア:

[(1, 21130538), (2, 10565269), (11, 1920958), (13, 1625426), (22, 960479), (26, 812713), (143, 147766), (286, 73883)]