21937203

素因数分解:

$3^3\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{293}}^1$

素因数の和:408

約数の個数: 32

約数和(自身を含む): 33868800

約数和(自身を除く): 11931597

約数列:

[1, 3, 9, 27, 47, 59, 141, 177, 293, 423, 531, 879, 1269, 1593, 2637, 2773, 7911, 8319, 13771, 17287, 24957, 41313, 51861, 74871, 123939, 155583, 371817, 466749, 812489, 2437467, 7312401, 21937203]

約数ペア:

[(1, 21937203), (3, 7312401), (9, 2437467), (27, 812489), (47, 466749), (59, 371817), (141, 155583), (177, 123939), (293, 74871), (423, 51861), (531, 41313), (879, 24957), (1269, 17287), (1593, 13771), (2637, 8319), (2773, 7911)]