21750344

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1$

素因数の和:139

約数の個数: 128

約数和(自身を含む): 56401920

約数和(自身を除く): 34651576

約数列:

[1, 2, 4, 7, 8, 11, 14, 17, 22, 28, 31, 34, 44, 56, 62, 67, 68, 77, 88, 119, 124, 134, 136, 154, 187, 217, 238, 248, 268, 308, 341, 374, 434, 469, 476, 527, 536, 616, 682, 737, 748, 868, 938, 952, 1054, 1139, 1309, 1364, 1474, 1496, 1736, 1876, 2077, 2108, 2278, 2387, 2618, 2728, 2948, 3689, 3752, 4154, 4216, 4556, 4774, 5159, 5236, 5797, 5896, 7378, 7973, 8308, 9112, 9548, 10318, 10472, 11594, 12529, 14539, 14756, 15946, 16616, 19096, 20636, 22847, 23188, 25058, 29078, 29512, 31892, 35309, 40579, 41272, 45694, 46376, 50116, 58156, 63784, 70618, 81158, 87703, 91388, 100232, 116312, 141236, 159929, 162316, 175406, 182776, 247163, 282472, 319858, 324632, 350812, 388399, 494326, 639716, 701624, 776798, 988652, 1279432, 1553596, 1977304, 2718793, 3107192, 5437586, 10875172, 21750344]

約数ペア:

[(1, 21750344), (2, 10875172), (4, 5437586), (7, 3107192), (8, 2718793), (11, 1977304), (14, 1553596), (17, 1279432), (22, 988652), (28, 776798), (31, 701624), (34, 639716), (44, 494326), (56, 388399), (62, 350812), (67, 324632), (68, 319858), (77, 282472), (88, 247163), (119, 182776), (124, 175406), (134, 162316), (136, 159929), (154, 141236), (187, 116312), (217, 100232), (238, 91388), (248, 87703), (268, 81158), (308, 70618), (341, 63784), (374, 58156), (434, 50116), (469, 46376), (476, 45694), (527, 41272), (536, 40579), (616, 35309), (682, 31892), (737, 29512), (748, 29078), (868, 25058), (938, 23188), (952, 22847), (1054, 20636), (1139, 19096), (1309, 16616), (1364, 15946), (1474, 14756), (1496, 14539), (1736, 12529), (1876, 11594), (2077, 10472), (2108, 10318), (2278, 9548), (2387, 9112), (2618, 8308), (2728, 7973), (2948, 7378), (3689, 5896), (3752, 5797), (4154, 5236), (4216, 5159), (4556, 4774)]