21263396

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1$

素因数の和:201

約数の個数: 96

約数和(自身を含む): 51093504

約数和(自身を除く): 29830108

約数列:

[1, 2, 4, 7, 11, 14, 17, 22, 28, 31, 34, 44, 62, 68, 77, 119, 124, 131, 154, 187, 217, 238, 262, 308, 341, 374, 434, 476, 524, 527, 682, 748, 868, 917, 1054, 1309, 1364, 1441, 1834, 2108, 2227, 2387, 2618, 2882, 3668, 3689, 4061, 4454, 4774, 5236, 5764, 5797, 7378, 8122, 8908, 9548, 10087, 11594, 14756, 15589, 16244, 20174, 23188, 24497, 28427, 31178, 40348, 40579, 44671, 48994, 56854, 62356, 69037, 81158, 89342, 97988, 113708, 138074, 162316, 171479, 178684, 276148, 312697, 342958, 483259, 625394, 685916, 759407, 966518, 1250788, 1518814, 1933036, 3037628, 5315849, 10631698, 21263396]

約数ペア:

[(1, 21263396), (2, 10631698), (4, 5315849), (7, 3037628), (11, 1933036), (14, 1518814), (17, 1250788), (22, 966518), (28, 759407), (31, 685916), (34, 625394), (44, 483259), (62, 342958), (68, 312697), (77, 276148), (119, 178684), (124, 171479), (131, 162316), (154, 138074), (187, 113708), (217, 97988), (238, 89342), (262, 81158), (308, 69037), (341, 62356), (374, 56854), (434, 48994), (476, 44671), (524, 40579), (527, 40348), (682, 31178), (748, 28427), (868, 24497), (917, 23188), (1054, 20174), (1309, 16244), (1364, 15589), (1441, 14756), (1834, 11594), (2108, 10087), (2227, 9548), (2387, 8908), (2618, 8122), (2882, 7378), (3668, 5797), (3689, 5764), (4061, 5236), (4454, 4774)]