21806172

素因数分解:

$2^2\times 3^4\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1$

素因数の和:177

約数の個数: 120

約数和(自身を含む): 62569584

約数和(自身を除く): 40763412

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 27, 34, 36, 37, 51, 54, 68, 74, 81, 102, 107, 108, 111, 148, 153, 162, 204, 214, 222, 306, 321, 324, 333, 428, 444, 459, 612, 629, 642, 666, 918, 963, 999, 1258, 1284, 1332, 1377, 1819, 1836, 1887, 1926, 1998, 2516, 2754, 2889, 2997, 3638, 3774, 3852, 3959, 3996, 5457, 5508, 5661, 5778, 5994, 7276, 7548, 7918, 8667, 10914, 11322, 11556, 11877, 11988, 15836, 16371, 16983, 17334, 21828, 22644, 23754, 32742, 33966, 34668, 35631, 47508, 49113, 50949, 65484, 67303, 67932, 71262, 98226, 101898, 106893, 134606, 142524, 147339, 196452, 201909, 203796, 213786, 269212, 294678, 320679, 403818, 427572, 589356, 605727, 641358, 807636, 1211454, 1282716, 1817181, 2422908, 3634362, 5451543, 7268724, 10903086, 21806172]

約数ペア:

[(1, 21806172), (2, 10903086), (3, 7268724), (4, 5451543), (6, 3634362), (9, 2422908), (12, 1817181), (17, 1282716), (18, 1211454), (27, 807636), (34, 641358), (36, 605727), (37, 589356), (51, 427572), (54, 403818), (68, 320679), (74, 294678), (81, 269212), (102, 213786), (107, 203796), (108, 201909), (111, 196452), (148, 147339), (153, 142524), (162, 134606), (204, 106893), (214, 101898), (222, 98226), (306, 71262), (321, 67932), (324, 67303), (333, 65484), (428, 50949), (444, 49113), (459, 47508), (612, 35631), (629, 34668), (642, 33966), (666, 32742), (918, 23754), (963, 22644), (999, 21828), (1258, 17334), (1284, 16983), (1332, 16371), (1377, 15836), (1819, 11988), (1836, 11877), (1887, 11556), (1926, 11322), (1998, 10914), (2516, 8667), (2754, 7918), (2889, 7548), (2997, 7276), (3638, 5994), (3774, 5778), (3852, 5661), (3959, 5508), (3996, 5457)]