21022280

素因数分解:

$2^3\times 5^1\times {\mathrm{373}}^1\times {\mathrm{1409}}^1$

素因数の和:1793

約数の個数: 32

約数和(自身を含む): 47460600

約数和(自身を除く): 26438320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 373, 746, 1409, 1492, 1865, 2818, 2984, 3730, 5636, 7045, 7460, 11272, 14090, 14920, 28180, 56360, 525557, 1051114, 2102228, 2627785, 4204456, 5255570, 10511140, 21022280]

約数ペア:

[(1, 21022280), (2, 10511140), (4, 5255570), (5, 4204456), (8, 2627785), (10, 2102228), (20, 1051114), (40, 525557), (373, 56360), (746, 28180), (1409, 14920), (1492, 14090), (1865, 11272), (2818, 7460), (2984, 7045), (3730, 5636)]