21608666

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{193}}^1$

素因数の和:338

約数の個数: 32

約数和(自身を含む): 35827920

約数和(自身を除く): 14219254

約数列:

[1, 2, 17, 34, 37, 74, 89, 178, 193, 386, 629, 1258, 1513, 3026, 3281, 3293, 6562, 6586, 7141, 14282, 17177, 34354, 55981, 111962, 121397, 242794, 292009, 584018, 635549, 1271098, 10804333, 21608666]

約数ペア:

[(1, 21608666), (2, 10804333), (17, 1271098), (34, 635549), (37, 584018), (74, 292009), (89, 242794), (178, 121397), (193, 111962), (386, 55981), (629, 34354), (1258, 17177), (1513, 14282), (3026, 7141), (3281, 6586), (3293, 6562)]