21698734

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1\times {\mathrm{877}}^1$

素因数の和:1107

約数の個数: 16

約数和(自身を含む): 33188400

約数和(自身を除く): 11489666

約数列:

[1, 2, 89, 139, 178, 278, 877, 1754, 12371, 24742, 78053, 121903, 156106, 243806, 10849367, 21698734]

約数ペア:

[(1, 21698734), (2, 10849367), (89, 243806), (139, 156106), (178, 121903), (278, 78053), (877, 24742), (1754, 12371)]