21949752

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:157

約数の個数: 128

約数和(自身を含む): 64281600

約数和(自身を除く): 42331848

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 29, 33, 44, 47, 58, 61, 66, 87, 88, 94, 116, 122, 132, 141, 174, 183, 188, 232, 244, 264, 282, 319, 348, 366, 376, 488, 517, 564, 638, 671, 696, 732, 957, 1034, 1128, 1276, 1342, 1363, 1464, 1551, 1769, 1914, 2013, 2068, 2552, 2684, 2726, 2867, 3102, 3538, 3828, 4026, 4089, 4136, 5307, 5368, 5452, 5734, 6204, 7076, 7656, 8052, 8178, 8601, 10614, 10904, 11468, 12408, 14152, 14993, 16104, 16356, 17202, 19459, 21228, 22936, 29986, 31537, 32712, 34404, 38918, 42456, 44979, 58377, 59972, 63074, 68808, 77836, 83143, 89958, 94611, 116754, 119944, 126148, 155672, 166286, 179916, 189222, 233508, 249429, 252296, 332572, 359832, 378444, 467016, 498858, 665144, 756888, 914573, 997716, 1829146, 1995432, 2743719, 3658292, 5487438, 7316584, 10974876, 21949752]

約数ペア:

[(1, 21949752), (2, 10974876), (3, 7316584), (4, 5487438), (6, 3658292), (8, 2743719), (11, 1995432), (12, 1829146), (22, 997716), (24, 914573), (29, 756888), (33, 665144), (44, 498858), (47, 467016), (58, 378444), (61, 359832), (66, 332572), (87, 252296), (88, 249429), (94, 233508), (116, 189222), (122, 179916), (132, 166286), (141, 155672), (174, 126148), (183, 119944), (188, 116754), (232, 94611), (244, 89958), (264, 83143), (282, 77836), (319, 68808), (348, 63074), (366, 59972), (376, 58377), (488, 44979), (517, 42456), (564, 38918), (638, 34404), (671, 32712), (696, 31537), (732, 29986), (957, 22936), (1034, 21228), (1128, 19459), (1276, 17202), (1342, 16356), (1363, 16104), (1464, 14993), (1551, 14152), (1769, 12408), (1914, 11468), (2013, 10904), (2068, 10614), (2552, 8601), (2684, 8178), (2726, 8052), (2867, 7656), (3102, 7076), (3538, 6204), (3828, 5734), (4026, 5452), (4089, 5368), (4136, 5307)]