21037670

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{2633}}^1$

素因数の和:2704

約数の個数: 32

約数和(自身を含む): 40963968

約数和(自身を除く): 19926298

約数列:

[1, 2, 5, 10, 17, 34, 47, 85, 94, 170, 235, 470, 799, 1598, 2633, 3995, 5266, 7990, 13165, 26330, 44761, 89522, 123751, 223805, 247502, 447610, 618755, 1237510, 2103767, 4207534, 10518835, 21037670]

約数ペア:

[(1, 21037670), (2, 10518835), (5, 4207534), (10, 2103767), (17, 1237510), (34, 618755), (47, 447610), (85, 247502), (94, 223805), (170, 123751), (235, 89522), (470, 44761), (799, 26330), (1598, 13165), (2633, 7990), (3995, 5266)]