21005602

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{6211}}^1$

素因数の和:6321

約数の個数: 16

約数和(自身を含む): 33544800

約数和(自身を除く): 12539198

約数列:

[1, 2, 19, 38, 89, 178, 1691, 3382, 6211, 12422, 118009, 236018, 552779, 1105558, 10502801, 21005602]

約数ペア:

[(1, 21005602), (2, 10502801), (19, 1105558), (38, 552779), (89, 236018), (178, 118009), (1691, 12422), (3382, 6211)]