21065876

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{10949}}^1$

素因数の和:11003

約数の個数: 24

約数和(自身を含む): 40777800

約数和(自身を除く): 19711924

約数列:

[1, 2, 4, 13, 26, 37, 52, 74, 148, 481, 962, 1924, 10949, 21898, 43796, 142337, 284674, 405113, 569348, 810226, 1620452, 5266469, 10532938, 21065876]

約数ペア:

[(1, 21065876), (2, 10532938), (4, 5266469), (13, 1620452), (26, 810226), (37, 569348), (52, 405113), (74, 284674), (148, 142337), (481, 43796), (962, 21898), (1924, 10949)]