21387564

素因数分解:

$2^2\times 3^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{353}}^1$

素因数の和:397

約数の個数: 120

約数和(自身を含む): 64765008

約数和(自身を除く): 43377444

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, 353, 374, 396, 459, 561, 594, 612, 706, 748, 891, 918, 1059, 1122, 1188, 1377, 1412, 1683, 1782, 1836, 2118, 2244, 2754, 3177, 3366, 3564, 3883, 4236, 5049, 5508, 6001, 6354, 6732, 7766, 9531, 10098, 11649, 12002, 12708, 15147, 15532, 18003, 19062, 20196, 23298, 24004, 28593, 30294, 34947, 36006, 38124, 46596, 54009, 57186, 60588, 66011, 69894, 72012, 104841, 108018, 114372, 132022, 139788, 162027, 198033, 209682, 216036, 264044, 314523, 324054, 396066, 419364, 486081, 594099, 629046, 648108, 792132, 972162, 1188198, 1258092, 1782297, 1944324, 2376396, 3564594, 5346891, 7129188, 10693782, 21387564]

約数ペア:

[(1, 21387564), (2, 10693782), (3, 7129188), (4, 5346891), (6, 3564594), (9, 2376396), (11, 1944324), (12, 1782297), (17, 1258092), (18, 1188198), (22, 972162), (27, 792132), (33, 648108), (34, 629046), (36, 594099), (44, 486081), (51, 419364), (54, 396066), (66, 324054), (68, 314523), (81, 264044), (99, 216036), (102, 209682), (108, 198033), (132, 162027), (153, 139788), (162, 132022), (187, 114372), (198, 108018), (204, 104841), (297, 72012), (306, 69894), (324, 66011), (353, 60588), (374, 57186), (396, 54009), (459, 46596), (561, 38124), (594, 36006), (612, 34947), (706, 30294), (748, 28593), (891, 24004), (918, 23298), (1059, 20196), (1122, 19062), (1188, 18003), (1377, 15532), (1412, 15147), (1683, 12708), (1782, 12002), (1836, 11649), (2118, 10098), (2244, 9531), (2754, 7766), (3177, 6732), (3366, 6354), (3564, 6001), (3883, 5508), (4236, 5049)]