21494528

素因数分解:

$2^8\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{449}}^1$

素因数の和:493

約数の個数: 72

約数和(自身を含む): 49669200

約数和(自身を除く): 28174672

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 32, 34, 44, 64, 68, 88, 128, 136, 176, 187, 256, 272, 352, 374, 449, 544, 704, 748, 898, 1088, 1408, 1496, 1796, 2176, 2816, 2992, 3592, 4352, 4939, 5984, 7184, 7633, 9878, 11968, 14368, 15266, 19756, 23936, 28736, 30532, 39512, 47872, 57472, 61064, 79024, 83963, 114944, 122128, 158048, 167926, 244256, 316096, 335852, 488512, 632192, 671704, 977024, 1264384, 1343408, 1954048, 2686816, 5373632, 10747264, 21494528]

約数ペア:

[(1, 21494528), (2, 10747264), (4, 5373632), (8, 2686816), (11, 1954048), (16, 1343408), (17, 1264384), (22, 977024), (32, 671704), (34, 632192), (44, 488512), (64, 335852), (68, 316096), (88, 244256), (128, 167926), (136, 158048), (176, 122128), (187, 114944), (256, 83963), (272, 79024), (352, 61064), (374, 57472), (449, 47872), (544, 39512), (704, 30532), (748, 28736), (898, 23936), (1088, 19756), (1408, 15266), (1496, 14368), (1796, 11968), (2176, 9878), (2816, 7633), (2992, 7184), (3592, 5984), (4352, 4939)]