21000990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{467}}^1\times {\mathrm{1499}}^1$

素因数の和:1976

約数の個数: 32

約数和(自身を含む): 50544000

約数和(自身を除く): 29543010

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 467, 934, 1401, 1499, 2335, 2802, 2998, 4497, 4670, 7005, 7495, 8994, 14010, 14990, 22485, 44970, 700033, 1400066, 2100099, 3500165, 4200198, 7000330, 10500495, 21000990]

約数ペア:

[(1, 21000990), (2, 10500495), (3, 7000330), (5, 4200198), (6, 3500165), (10, 2100099), (15, 1400066), (30, 700033), (467, 44970), (934, 22485), (1401, 14990), (1499, 14010), (2335, 8994), (2802, 7495), (2998, 7005), (4497, 4670)]