638521719

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{197}}^1\times {\mathrm{8929}}^1$

素因数の和:9151

約数の個数: 24

約数和(自身を含む): 940650480

約数和(自身を除く): 302128761

約数列:

[1, 3, 11, 33, 121, 197, 363, 591, 2167, 6501, 8929, 23837, 26787, 71511, 98219, 294657, 1080409, 1759013, 3241227, 5277039, 19349143, 58047429, 212840573, 638521719]

約数ペア:

[(1, 638521719), (3, 212840573), (11, 58047429), (33, 19349143), (121, 5277039), (197, 3241227), (363, 1759013), (591, 1080409), (2167, 294657), (6501, 98219), (8929, 71511), (23837, 26787)]