21903927

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{2633}}^1$

素因数の和:2742

約数の個数: 16

約数和(自身を含む): 30343680

約数和(自身を除く): 8439753

約数列:

[1, 3, 47, 59, 141, 177, 2633, 2773, 7899, 8319, 123751, 155347, 371253, 466041, 7301309, 21903927]

約数ペア:

[(1, 21903927), (3, 7301309), (47, 466041), (59, 371253), (141, 155347), (177, 123751), (2633, 8319), (2773, 7899)]