28743561

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1$

素因数の和:139

約数の個数: 96

約数和(自身を含む): 56908800

約数和(自身を除く): 28165239

約数列:

[1, 3, 7, 9, 11, 19, 21, 33, 37, 57, 59, 63, 77, 99, 111, 133, 171, 177, 209, 231, 259, 333, 399, 407, 413, 531, 627, 649, 693, 703, 777, 1121, 1197, 1221, 1239, 1463, 1881, 1947, 2109, 2183, 2331, 2849, 3363, 3663, 3717, 4389, 4543, 4921, 5841, 6327, 6549, 7733, 7847, 8547, 10089, 12331, 13167, 13629, 14763, 15281, 19647, 23199, 23541, 24013, 25641, 36993, 40887, 41477, 44289, 45843, 54131, 69597, 70623, 72039, 86317, 110979, 124431, 137529, 162393, 168091, 216117, 258951, 290339, 373293, 456247, 487179, 504273, 776853, 871017, 1368741, 1512819, 2613051, 3193729, 4106223, 9581187, 28743561]

約数ペア:

[(1, 28743561), (3, 9581187), (7, 4106223), (9, 3193729), (11, 2613051), (19, 1512819), (21, 1368741), (33, 871017), (37, 776853), (57, 504273), (59, 487179), (63, 456247), (77, 373293), (99, 290339), (111, 258951), (133, 216117), (171, 168091), (177, 162393), (209, 137529), (231, 124431), (259, 110979), (333, 86317), (399, 72039), (407, 70623), (413, 69597), (531, 54131), (627, 45843), (649, 44289), (693, 41477), (703, 40887), (777, 36993), (1121, 25641), (1197, 24013), (1221, 23541), (1239, 23199), (1463, 19647), (1881, 15281), (1947, 14763), (2109, 13629), (2183, 13167), (2331, 12331), (2849, 10089), (3363, 8547), (3663, 7847), (3717, 7733), (4389, 6549), (4543, 6327), (4921, 5841)]