21122870

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{1039}}^1$

素因数の和:1172

約数の個数: 32

約数和(自身を含む): 40435200

約数和(自身を除く): 19312330

約数列:

[1, 2, 5, 10, 19, 38, 95, 107, 190, 214, 535, 1039, 1070, 2033, 2078, 4066, 5195, 10165, 10390, 19741, 20330, 39482, 98705, 111173, 197410, 222346, 555865, 1111730, 2112287, 4224574, 10561435, 21122870]

約数ペア:

[(1, 21122870), (2, 10561435), (5, 4224574), (10, 2112287), (19, 1111730), (38, 555865), (95, 222346), (107, 197410), (190, 111173), (214, 98705), (535, 39482), (1039, 20330), (1070, 19741), (2033, 10390), (2078, 10165), (4066, 5195)]