21992512486

素因数分解:

$2^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{19884731}}^1$

素因数の和:19884819

約数の個数: 16

約数和(自身を含む): 38178685440

約数和(自身を除く): 16186172954

約数列:

[1, 2, 7, 14, 79, 158, 553, 1106, 19884731, 39769462, 139193117, 278386234, 1570893749, 3141787498, 10996256243, 21992512486]

約数ペア:

[(1, 21992512486), (2, 10996256243), (7, 3141787498), (14, 1570893749), (79, 278386234), (158, 139193117), (553, 39769462), (1106, 19884731)]