21145212

素因数分解:

$2^2\times 3^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{349}}^1$

素因数の和:393

約数の個数: 120

約数和(自身を含む): 64033200

約数和(自身を除く): 42887988

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 17, 18, 22, 27, 33, 34, 36, 44, 51, 54, 66, 68, 81, 99, 102, 108, 132, 153, 162, 187, 198, 204, 297, 306, 324, 349, 374, 396, 459, 561, 594, 612, 698, 748, 891, 918, 1047, 1122, 1188, 1377, 1396, 1683, 1782, 1836, 2094, 2244, 2754, 3141, 3366, 3564, 3839, 4188, 5049, 5508, 5933, 6282, 6732, 7678, 9423, 10098, 11517, 11866, 12564, 15147, 15356, 17799, 18846, 20196, 23034, 23732, 28269, 30294, 34551, 35598, 37692, 46068, 53397, 56538, 60588, 65263, 69102, 71196, 103653, 106794, 113076, 130526, 138204, 160191, 195789, 207306, 213588, 261052, 310959, 320382, 391578, 414612, 480573, 587367, 621918, 640764, 783156, 961146, 1174734, 1243836, 1762101, 1922292, 2349468, 3524202, 5286303, 7048404, 10572606, 21145212]

約数ペア:

[(1, 21145212), (2, 10572606), (3, 7048404), (4, 5286303), (6, 3524202), (9, 2349468), (11, 1922292), (12, 1762101), (17, 1243836), (18, 1174734), (22, 961146), (27, 783156), (33, 640764), (34, 621918), (36, 587367), (44, 480573), (51, 414612), (54, 391578), (66, 320382), (68, 310959), (81, 261052), (99, 213588), (102, 207306), (108, 195789), (132, 160191), (153, 138204), (162, 130526), (187, 113076), (198, 106794), (204, 103653), (297, 71196), (306, 69102), (324, 65263), (349, 60588), (374, 56538), (396, 53397), (459, 46068), (561, 37692), (594, 35598), (612, 34551), (698, 30294), (748, 28269), (891, 23732), (918, 23034), (1047, 20196), (1122, 18846), (1188, 17799), (1377, 15356), (1396, 15147), (1683, 12564), (1782, 11866), (1836, 11517), (2094, 10098), (2244, 9423), (2754, 7678), (3141, 6732), (3366, 6282), (3564, 5933), (3839, 5508), (4188, 5049)]