19889793

素因数分解:

$3^5\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1063}}^1$

素因数の和:1096

約数の個数: 48

約数和(自身を含む): 37180416

約数和(自身を除く): 17290623

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 81, 99, 189, 231, 243, 297, 567, 693, 891, 1063, 1701, 2079, 2673, 3189, 6237, 7441, 9567, 11693, 18711, 22323, 28701, 35079, 66969, 81851, 86103, 105237, 200907, 245553, 258309, 315711, 602721, 736659, 947133, 1808163, 2209977, 2841399, 6629931, 19889793]

約数ペア:

[(1, 19889793), (3, 6629931), (7, 2841399), (9, 2209977), (11, 1808163), (21, 947133), (27, 736659), (33, 602721), (63, 315711), (77, 258309), (81, 245553), (99, 200907), (189, 105237), (231, 86103), (243, 81851), (297, 66969), (567, 35079), (693, 28701), (891, 22323), (1063, 18711), (1701, 11693), (2079, 9567), (2673, 7441), (3189, 6237)]