21504252

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^2$

素因数の和:116

約数の個数: 144

約数和(自身を含む): 68076288

約数和(自身を除く): 46572036

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 17, 21, 22, 28, 33, 34, 37, 42, 44, 51, 66, 68, 74, 77, 84, 102, 111, 119, 132, 148, 154, 187, 204, 222, 231, 238, 259, 308, 357, 374, 407, 444, 462, 476, 518, 561, 629, 714, 748, 777, 814, 924, 1036, 1122, 1221, 1258, 1309, 1369, 1428, 1554, 1628, 1887, 2244, 2442, 2516, 2618, 2738, 2849, 3108, 3774, 3927, 4107, 4403, 4884, 5236, 5476, 5698, 6919, 7548, 7854, 8214, 8547, 8806, 9583, 11396, 13209, 13838, 15059, 15708, 16428, 17094, 17612, 19166, 20757, 23273, 26418, 27676, 28749, 30118, 34188, 38332, 41514, 45177, 46546, 48433, 52836, 57498, 60236, 69819, 83028, 90354, 93092, 96866, 105413, 114996, 139638, 145299, 162911, 180708, 193732, 210826, 256003, 279276, 290598, 316239, 325822, 421652, 488733, 512006, 581196, 632478, 651644, 768009, 977466, 1024012, 1264956, 1536018, 1792021, 1954932, 3072036, 3584042, 5376063, 7168084, 10752126, 21504252]

約数ペア:

[(1, 21504252), (2, 10752126), (3, 7168084), (4, 5376063), (6, 3584042), (7, 3072036), (11, 1954932), (12, 1792021), (14, 1536018), (17, 1264956), (21, 1024012), (22, 977466), (28, 768009), (33, 651644), (34, 632478), (37, 581196), (42, 512006), (44, 488733), (51, 421652), (66, 325822), (68, 316239), (74, 290598), (77, 279276), (84, 256003), (102, 210826), (111, 193732), (119, 180708), (132, 162911), (148, 145299), (154, 139638), (187, 114996), (204, 105413), (222, 96866), (231, 93092), (238, 90354), (259, 83028), (308, 69819), (357, 60236), (374, 57498), (407, 52836), (444, 48433), (462, 46546), (476, 45177), (518, 41514), (561, 38332), (629, 34188), (714, 30118), (748, 28749), (777, 27676), (814, 26418), (924, 23273), (1036, 20757), (1122, 19166), (1221, 17612), (1258, 17094), (1309, 16428), (1369, 15708), (1428, 15059), (1554, 13838), (1628, 13209), (1887, 11396), (2244, 9583), (2442, 8806), (2516, 8547), (2618, 8214), (2738, 7854), (2849, 7548), (3108, 6919), (3774, 5698), (3927, 5476), (4107, 5236), (4403, 4884)]