212216865

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{1949}}^1$

素因数の和:2042

約数の個数: 64

約数和(自身を含む): 417830400

約数和(自身を除く): 205613535

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 51, 61, 85, 105, 119, 183, 255, 305, 357, 427, 595, 915, 1037, 1281, 1785, 1949, 2135, 3111, 5185, 5847, 6405, 7259, 9745, 13643, 15555, 21777, 29235, 33133, 36295, 40929, 68215, 99399, 108885, 118889, 165665, 204645, 231931, 356667, 496995, 594445, 695793, 832223, 1159655, 1783335, 2021113, 2496669, 3478965, 4161115, 6063339, 10105565, 12483345, 14147791, 30316695, 42443373, 70738955, 212216865]

約数ペア:

[(1, 212216865), (3, 70738955), (5, 42443373), (7, 30316695), (15, 14147791), (17, 12483345), (21, 10105565), (35, 6063339), (51, 4161115), (61, 3478965), (85, 2496669), (105, 2021113), (119, 1783335), (183, 1159655), (255, 832223), (305, 695793), (357, 594445), (427, 496995), (595, 356667), (915, 231931), (1037, 204645), (1281, 165665), (1785, 118889), (1949, 108885), (2135, 99399), (3111, 68215), (5185, 40929), (5847, 36295), (6405, 33133), (7259, 29235), (9745, 21777), (13643, 15555)]