21468960

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{877}}^1$

素因数の和:915

約数の個数: 144

約数和(自身を含む): 77660856

約数和(自身を除く): 56191896

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 30, 32, 34, 36, 40, 45, 48, 51, 60, 68, 72, 80, 85, 90, 96, 102, 120, 136, 144, 153, 160, 170, 180, 204, 240, 255, 272, 288, 306, 340, 360, 408, 480, 510, 544, 612, 680, 720, 765, 816, 877, 1020, 1224, 1360, 1440, 1530, 1632, 1754, 2040, 2448, 2631, 2720, 3060, 3508, 4080, 4385, 4896, 5262, 6120, 7016, 7893, 8160, 8770, 10524, 12240, 13155, 14032, 14909, 15786, 17540, 21048, 24480, 26310, 28064, 29818, 31572, 35080, 39465, 42096, 44727, 52620, 59636, 63144, 70160, 74545, 78930, 84192, 89454, 105240, 119272, 126288, 134181, 140320, 149090, 157860, 178908, 210480, 223635, 238544, 252576, 268362, 298180, 315720, 357816, 420960, 447270, 477088, 536724, 596360, 631440, 670905, 715632, 894540, 1073448, 1192720, 1262880, 1341810, 1431264, 1789080, 2146896, 2385440, 2683620, 3578160, 4293792, 5367240, 7156320, 10734480, 21468960]

約数ペア:

[(1, 21468960), (2, 10734480), (3, 7156320), (4, 5367240), (5, 4293792), (6, 3578160), (8, 2683620), (9, 2385440), (10, 2146896), (12, 1789080), (15, 1431264), (16, 1341810), (17, 1262880), (18, 1192720), (20, 1073448), (24, 894540), (30, 715632), (32, 670905), (34, 631440), (36, 596360), (40, 536724), (45, 477088), (48, 447270), (51, 420960), (60, 357816), (68, 315720), (72, 298180), (80, 268362), (85, 252576), (90, 238544), (96, 223635), (102, 210480), (120, 178908), (136, 157860), (144, 149090), (153, 140320), (160, 134181), (170, 126288), (180, 119272), (204, 105240), (240, 89454), (255, 84192), (272, 78930), (288, 74545), (306, 70160), (340, 63144), (360, 59636), (408, 52620), (480, 44727), (510, 42096), (544, 39465), (612, 35080), (680, 31572), (720, 29818), (765, 28064), (816, 26310), (877, 24480), (1020, 21048), (1224, 17540), (1360, 15786), (1440, 14909), (1530, 14032), (1632, 13155), (1754, 12240), (2040, 10524), (2448, 8770), (2631, 8160), (2720, 7893), (3060, 7016), (3508, 6120), (4080, 5262), (4385, 4896)]