21168060

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{20753}}^1$

素因数の和:20782

約数の個数: 48

約数和(自身を含む): 62760096

約数和(自身を除く): 41592036

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 20753, 41506, 62259, 83012, 103765, 124518, 207530, 249036, 311295, 352801, 415060, 622590, 705602, 1058403, 1245180, 1411204, 1764005, 2116806, 3528010, 4233612, 5292015, 7056020, 10584030, 21168060]

約数ペア:

[(1, 21168060), (2, 10584030), (3, 7056020), (4, 5292015), (5, 4233612), (6, 3528010), (10, 2116806), (12, 1764005), (15, 1411204), (17, 1245180), (20, 1058403), (30, 705602), (34, 622590), (51, 415060), (60, 352801), (68, 311295), (85, 249036), (102, 207530), (170, 124518), (204, 103765), (255, 83012), (340, 62259), (510, 41506), (1020, 20753)]