20996972

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{4349}}^1$

素因数の和:4441

約数の個数: 24

約数和(自身を含む): 39463200

約数和(自身を除く): 18466228

約数列:

[1, 2, 4, 17, 34, 68, 71, 142, 284, 1207, 2414, 4349, 4828, 8698, 17396, 73933, 147866, 295732, 308779, 617558, 1235116, 5249243, 10498486, 20996972]

約数ペア:

[(1, 20996972), (2, 10498486), (4, 5249243), (17, 1235116), (34, 617558), (68, 308779), (71, 295732), (142, 147866), (284, 73933), (1207, 17396), (2414, 8698), (4349, 4828)]