21577570

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{1549}}^1$

素因数の和:1762

約数の個数: 32

約数和(自身を含む): 44640000

約数和(自身を除く): 23062430

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 199, 398, 995, 1393, 1549, 1990, 2786, 3098, 6965, 7745, 10843, 13930, 15490, 21686, 54215, 108430, 308251, 616502, 1541255, 2157757, 3082510, 4315514, 10788785, 21577570]

約数ペア:

[(1, 21577570), (2, 10788785), (5, 4315514), (7, 3082510), (10, 2157757), (14, 1541255), (35, 616502), (70, 308251), (199, 108430), (398, 54215), (995, 21686), (1393, 15490), (1549, 13930), (1990, 10843), (2786, 7745), (3098, 6965)]