21421543

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{2539}}^1$

素因数の和:2622

約数の個数: 16

約数和(自身を含む): 25603200

約数和(自身を除く): 4181657

約数列:

[1, 11, 13, 59, 143, 649, 767, 2539, 8437, 27929, 33007, 149801, 363077, 1647811, 1947413, 21421543]

約数ペア:

[(1, 21421543), (11, 1947413), (13, 1647811), (59, 363077), (143, 149801), (649, 33007), (767, 27929), (2539, 8437)]