21002030

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{15791}}^1$

素因数の和:15824

約数の個数: 32

約数和(自身を含む): 45480960

約数和(自身を除く): 24478930

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 133, 190, 266, 665, 1330, 15791, 31582, 78955, 110537, 157910, 221074, 300029, 552685, 600058, 1105370, 1500145, 2100203, 3000290, 4200406, 10501015, 21002030]

約数ペア:

[(1, 21002030), (2, 10501015), (5, 4200406), (7, 3000290), (10, 2100203), (14, 1500145), (19, 1105370), (35, 600058), (38, 552685), (70, 300029), (95, 221074), (133, 157910), (190, 110537), (266, 78955), (665, 31582), (1330, 15791)]