21283527

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{271}}^1\times {\mathrm{557}}^1$

素因数の和:878

約数の個数: 16

約数和(自身を含む): 29140992

約数和(自身を除く): 7857465

約数列:

[1, 3, 47, 141, 271, 557, 813, 1671, 12737, 26179, 38211, 78537, 150947, 452841, 7094509, 21283527]

約数ペア:

[(1, 21283527), (3, 7094509), (47, 452841), (141, 150947), (271, 78537), (557, 38211), (813, 26179), (1671, 12737)]