21028391636

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{15979021}}^1$

素因数の和:15979079

約数の個数: 24

約数和(自身を含む): 42951611136

約数和(自身を除く): 21923219500

約数列:

[1, 2, 4, 7, 14, 28, 47, 94, 188, 329, 658, 1316, 15979021, 31958042, 63916084, 111853147, 223706294, 447412588, 751013987, 1502027974, 3004055948, 5257097909, 10514195818, 21028391636]

約数ペア:

[(1, 21028391636), (2, 10514195818), (4, 5257097909), (7, 3004055948), (14, 1502027974), (28, 751013987), (47, 447412588), (94, 223706294), (188, 111853147), (329, 63916084), (658, 31958042), (1316, 15979021)]