21121941

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{2539}}^1$

素因数の和:2648

約数の個数: 16

約数和(自身を含む): 29260800

約数和(自身を除く): 8138859

約数列:

[1, 3, 47, 59, 141, 177, 2539, 2773, 7617, 8319, 119333, 149801, 357999, 449403, 7040647, 21121941]

約数ペア:

[(1, 21121941), (3, 7040647), (47, 449403), (59, 357999), (141, 149801), (177, 119333), (2539, 8319), (2773, 7617)]