21259095

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1$

素因数の和:113

約数の個数: 96

約数和(自身を含む): 43436736

約数和(自身を除く): 22177641

約数列:

[1, 3, 5, 11, 13, 15, 17, 33, 39, 51, 53, 55, 65, 85, 121, 143, 159, 165, 187, 195, 221, 255, 265, 363, 429, 561, 583, 605, 663, 689, 715, 795, 901, 935, 1105, 1573, 1749, 1815, 2057, 2067, 2145, 2431, 2703, 2805, 2915, 3315, 3445, 4505, 4719, 6171, 6413, 7293, 7579, 7865, 8745, 9911, 10285, 10335, 11713, 12155, 13515, 19239, 22737, 23595, 26741, 29733, 30855, 32065, 35139, 36465, 37895, 49555, 58565, 80223, 83369, 96195, 109021, 113685, 128843, 133705, 148665, 175695, 250107, 327063, 386529, 401115, 416845, 545105, 644215, 1250535, 1417273, 1635315, 1932645, 4251819, 7086365, 21259095]

約数ペア:

[(1, 21259095), (3, 7086365), (5, 4251819), (11, 1932645), (13, 1635315), (15, 1417273), (17, 1250535), (33, 644215), (39, 545105), (51, 416845), (53, 401115), (55, 386529), (65, 327063), (85, 250107), (121, 175695), (143, 148665), (159, 133705), (165, 128843), (187, 113685), (195, 109021), (221, 96195), (255, 83369), (265, 80223), (363, 58565), (429, 49555), (561, 37895), (583, 36465), (605, 35139), (663, 32065), (689, 30855), (715, 29733), (795, 26741), (901, 23595), (935, 22737), (1105, 19239), (1573, 13515), (1749, 12155), (1815, 11713), (2057, 10335), (2067, 10285), (2145, 9911), (2431, 8745), (2703, 7865), (2805, 7579), (2915, 7293), (3315, 6413), (3445, 6171), (4505, 4719)]