21149530

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{2647}}^1$

素因数の和:2718

約数の個数: 32

約数和(自身を含む): 41181696

約数和(自身を除く): 20032166

約数列:

[1, 2, 5, 10, 17, 34, 47, 85, 94, 170, 235, 470, 799, 1598, 2647, 3995, 5294, 7990, 13235, 26470, 44999, 89998, 124409, 224995, 248818, 449990, 622045, 1244090, 2114953, 4229906, 10574765, 21149530]

約数ペア:

[(1, 21149530), (2, 10574765), (5, 4229906), (10, 2114953), (17, 1244090), (34, 622045), (47, 449990), (85, 248818), (94, 224995), (170, 124409), (235, 89998), (470, 44999), (799, 26470), (1598, 13235), (2647, 7990), (3995, 5294)]