19810798

素因数分解:

$2^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{6521}}^1$

素因数の和:6568

約数の個数: 24

約数和(自身を含む): 35688384

約数和(自身を除く): 15877586

約数列:

[1, 2, 7, 14, 31, 49, 62, 98, 217, 434, 1519, 3038, 6521, 13042, 45647, 91294, 202151, 319529, 404302, 639058, 1415057, 2830114, 9905399, 19810798]

約数ペア:

[(1, 19810798), (2, 9905399), (7, 2830114), (14, 1415057), (31, 639058), (49, 404302), (62, 319529), (98, 202151), (217, 91294), (434, 45647), (1519, 13042), (3038, 6521)]