21690030

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{15383}}^1$

素因数の和:15440

約数の個数: 32

約数和(自身を含む): 53167104

約数和(自身を除く): 31477074

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 47, 94, 141, 235, 282, 470, 705, 1410, 15383, 30766, 46149, 76915, 92298, 153830, 230745, 461490, 723001, 1446002, 2169003, 3615005, 4338006, 7230010, 10845015, 21690030]

約数ペア:

[(1, 21690030), (2, 10845015), (3, 7230010), (5, 4338006), (6, 3615005), (10, 2169003), (15, 1446002), (30, 723001), (47, 461490), (94, 230745), (141, 153830), (235, 92298), (282, 76915), (470, 46149), (705, 30766), (1410, 15383)]