21656800

素因数分解:

$2^5\times 5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1$

素因数の和:161

約数の個数: 144

約数和(自身を含む): 60746112

約数和(自身を除く): 39089312

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 23, 25, 32, 40, 44, 46, 50, 55, 80, 88, 92, 100, 107, 110, 115, 160, 176, 184, 200, 214, 220, 230, 253, 275, 352, 368, 400, 428, 440, 460, 506, 535, 550, 575, 736, 800, 856, 880, 920, 1012, 1070, 1100, 1150, 1177, 1265, 1712, 1760, 1840, 2024, 2140, 2200, 2300, 2354, 2461, 2530, 2675, 3424, 3680, 4048, 4280, 4400, 4600, 4708, 4922, 5060, 5350, 5885, 6325, 8096, 8560, 8800, 9200, 9416, 9844, 10120, 10700, 11770, 12305, 12650, 17120, 18400, 18832, 19688, 20240, 21400, 23540, 24610, 25300, 27071, 29425, 37664, 39376, 40480, 42800, 47080, 49220, 50600, 54142, 58850, 61525, 78752, 85600, 94160, 98440, 101200, 108284, 117700, 123050, 135355, 188320, 196880, 202400, 216568, 235400, 246100, 270710, 393760, 433136, 470800, 492200, 541420, 676775, 866272, 941600, 984400, 1082840, 1353550, 1968800, 2165680, 2707100, 4331360, 5414200, 10828400, 21656800]

約数ペア:

[(1, 21656800), (2, 10828400), (4, 5414200), (5, 4331360), (8, 2707100), (10, 2165680), (11, 1968800), (16, 1353550), (20, 1082840), (22, 984400), (23, 941600), (25, 866272), (32, 676775), (40, 541420), (44, 492200), (46, 470800), (50, 433136), (55, 393760), (80, 270710), (88, 246100), (92, 235400), (100, 216568), (107, 202400), (110, 196880), (115, 188320), (160, 135355), (176, 123050), (184, 117700), (200, 108284), (214, 101200), (220, 98440), (230, 94160), (253, 85600), (275, 78752), (352, 61525), (368, 58850), (400, 54142), (428, 50600), (440, 49220), (460, 47080), (506, 42800), (535, 40480), (550, 39376), (575, 37664), (736, 29425), (800, 27071), (856, 25300), (880, 24610), (920, 23540), (1012, 21400), (1070, 20240), (1100, 19688), (1150, 18832), (1177, 18400), (1265, 17120), (1712, 12650), (1760, 12305), (1840, 11770), (2024, 10700), (2140, 10120), (2200, 9844), (2300, 9416), (2354, 9200), (2461, 8800), (2530, 8560), (2675, 8096), (3424, 6325), (3680, 5885), (4048, 5350), (4280, 5060), (4400, 4922), (4600, 4708)]