21066478

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{6229}}^1$

素因数の和:6339

約数の個数: 16

約数和(自身を含む): 33642000

約数和(自身を除く): 12575522

約数列:

[1, 2, 19, 38, 89, 178, 1691, 3382, 6229, 12458, 118351, 236702, 554381, 1108762, 10533239, 21066478]

約数ペア:

[(1, 21066478), (2, 10533239), (19, 1108762), (38, 554381), (89, 236702), (178, 118351), (1691, 12458), (3382, 6229)]