211770405

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{8731}}^1$

素因数の和:8767

約数の個数: 72

約数和(自身を含む): 465869664

約数和(自身を除く): 254099259

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 33, 35, 45, 49, 55, 63, 77, 99, 105, 147, 165, 231, 245, 315, 385, 441, 495, 539, 693, 735, 1155, 1617, 2205, 2695, 3465, 4851, 8085, 8731, 24255, 26193, 43655, 61117, 78579, 96041, 130965, 183351, 288123, 305585, 392895, 427819, 480205, 550053, 672287, 864369, 916755, 1283457, 1440615, 2016861, 2139095, 2750265, 3361435, 3850371, 4321845, 4706009, 6050583, 6417285, 10084305, 14118027, 19251855, 23530045, 30252915, 42354081, 70590135, 211770405]

約数ペア:

[(1, 211770405), (3, 70590135), (5, 42354081), (7, 30252915), (9, 23530045), (11, 19251855), (15, 14118027), (21, 10084305), (33, 6417285), (35, 6050583), (45, 4706009), (49, 4321845), (55, 3850371), (63, 3361435), (77, 2750265), (99, 2139095), (105, 2016861), (147, 1440615), (165, 1283457), (231, 916755), (245, 864369), (315, 672287), (385, 550053), (441, 480205), (495, 427819), (539, 392895), (693, 305585), (735, 288123), (1155, 183351), (1617, 130965), (2205, 96041), (2695, 78579), (3465, 61117), (4851, 43655), (8085, 26193), (8731, 24255)]