21158676

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{449}}^1$

素因数の和:494

約数の個数: 144

約数和(自身を含む): 70761600

約数和(自身を除く): 49602924

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 17, 18, 21, 22, 28, 33, 34, 36, 42, 44, 51, 63, 66, 68, 77, 84, 99, 102, 119, 126, 132, 153, 154, 187, 198, 204, 231, 238, 252, 306, 308, 357, 374, 396, 449, 462, 476, 561, 612, 693, 714, 748, 898, 924, 1071, 1122, 1309, 1347, 1386, 1428, 1683, 1796, 2142, 2244, 2618, 2694, 2772, 3143, 3366, 3927, 4041, 4284, 4939, 5236, 5388, 6286, 6732, 7633, 7854, 8082, 9429, 9878, 11781, 12572, 14817, 15266, 15708, 16164, 18858, 19756, 22899, 23562, 28287, 29634, 30532, 34573, 37716, 44451, 45798, 47124, 53431, 56574, 59268, 68697, 69146, 83963, 88902, 91596, 103719, 106862, 113148, 137394, 138292, 160293, 167926, 177804, 207438, 213724, 251889, 274788, 311157, 320586, 335852, 414876, 480879, 503778, 587741, 622314, 641172, 755667, 961758, 1007556, 1175482, 1244628, 1511334, 1763223, 1923516, 2350964, 3022668, 3526446, 5289669, 7052892, 10579338, 21158676]

約数ペア:

[(1, 21158676), (2, 10579338), (3, 7052892), (4, 5289669), (6, 3526446), (7, 3022668), (9, 2350964), (11, 1923516), (12, 1763223), (14, 1511334), (17, 1244628), (18, 1175482), (21, 1007556), (22, 961758), (28, 755667), (33, 641172), (34, 622314), (36, 587741), (42, 503778), (44, 480879), (51, 414876), (63, 335852), (66, 320586), (68, 311157), (77, 274788), (84, 251889), (99, 213724), (102, 207438), (119, 177804), (126, 167926), (132, 160293), (153, 138292), (154, 137394), (187, 113148), (198, 106862), (204, 103719), (231, 91596), (238, 88902), (252, 83963), (306, 69146), (308, 68697), (357, 59268), (374, 56574), (396, 53431), (449, 47124), (462, 45798), (476, 44451), (561, 37716), (612, 34573), (693, 30532), (714, 29634), (748, 28287), (898, 23562), (924, 22899), (1071, 19756), (1122, 18858), (1309, 16164), (1347, 15708), (1386, 15266), (1428, 14817), (1683, 12572), (1796, 11781), (2142, 9878), (2244, 9429), (2618, 8082), (2694, 7854), (2772, 7633), (3143, 6732), (3366, 6286), (3927, 5388), (4041, 5236), (4284, 4939)]