20959912

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{229}}^1\times {\mathrm{673}}^1$

素因数の和:925

約数の個数: 32

約数和(自身を含む): 41855400

約数和(自身を除く): 20895488

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 229, 458, 673, 916, 1346, 1832, 2692, 3893, 5384, 7786, 11441, 15572, 22882, 31144, 45764, 91528, 154117, 308234, 616468, 1232936, 2619989, 5239978, 10479956, 20959912]

約数ペア:

[(1, 20959912), (2, 10479956), (4, 5239978), (8, 2619989), (17, 1232936), (34, 616468), (68, 308234), (136, 154117), (229, 91528), (458, 45764), (673, 31144), (916, 22882), (1346, 15572), (1832, 11441), (2692, 7786), (3893, 5384)]