21356104

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{937}}^1$

素因数の和:998

約数の個数: 64

約数和(自身を含む): 51327360

約数和(自身を除く): 29971256

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 37, 44, 56, 74, 77, 88, 148, 154, 259, 296, 308, 407, 518, 616, 814, 937, 1036, 1628, 1874, 2072, 2849, 3256, 3748, 5698, 6559, 7496, 10307, 11396, 13118, 20614, 22792, 26236, 34669, 41228, 52472, 69338, 72149, 82456, 138676, 144298, 242683, 277352, 288596, 381359, 485366, 577192, 762718, 970732, 1525436, 1941464, 2669513, 3050872, 5339026, 10678052, 21356104]

約数ペア:

[(1, 21356104), (2, 10678052), (4, 5339026), (7, 3050872), (8, 2669513), (11, 1941464), (14, 1525436), (22, 970732), (28, 762718), (37, 577192), (44, 485366), (56, 381359), (74, 288596), (77, 277352), (88, 242683), (148, 144298), (154, 138676), (259, 82456), (296, 72149), (308, 69338), (407, 52472), (518, 41228), (616, 34669), (814, 26236), (937, 22792), (1036, 20614), (1628, 13118), (1874, 11396), (2072, 10307), (2849, 7496), (3256, 6559), (3748, 5698)]