21949202720

素因数分解:

$2^5\times 5^1\times {\mathrm{137182517}}^1$

素因数の和:137182532

約数の個数: 24

約数和(自身を含む): 51854991804

約数和(自身を除く): 29905789084

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 137182517, 274365034, 548730068, 685912585, 1097460136, 1371825170, 2194920272, 2743650340, 4389840544, 5487300680, 10974601360, 21949202720]

約数ペア:

[(1, 21949202720), (2, 10974601360), (4, 5487300680), (5, 4389840544), (8, 2743650340), (10, 2194920272), (16, 1371825170), (20, 1097460136), (32, 685912585), (40, 548730068), (80, 274365034), (160, 137182517)]