21903112

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{37}}^1$

素因数の和:123

約数の個数: 96

約数和(自身を含む): 54336960

約数和(自身を除く): 32433848

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 31, 37, 44, 56, 62, 74, 77, 88, 124, 148, 154, 217, 248, 259, 296, 308, 341, 407, 434, 518, 616, 682, 814, 868, 961, 1036, 1147, 1364, 1628, 1736, 1922, 2072, 2294, 2387, 2728, 2849, 3256, 3844, 4588, 4774, 5698, 6727, 7688, 8029, 9176, 9548, 10571, 11396, 12617, 13454, 16058, 19096, 21142, 22792, 25234, 26908, 32116, 35557, 42284, 50468, 53816, 64232, 71114, 73997, 84568, 88319, 100936, 142228, 147994, 176638, 248899, 284456, 295988, 353276, 391127, 497798, 591976, 706552, 782254, 995596, 1564508, 1991192, 2737889, 3129016, 5475778, 10951556, 21903112]

約数ペア:

[(1, 21903112), (2, 10951556), (4, 5475778), (7, 3129016), (8, 2737889), (11, 1991192), (14, 1564508), (22, 995596), (28, 782254), (31, 706552), (37, 591976), (44, 497798), (56, 391127), (62, 353276), (74, 295988), (77, 284456), (88, 248899), (124, 176638), (148, 147994), (154, 142228), (217, 100936), (248, 88319), (259, 84568), (296, 73997), (308, 71114), (341, 64232), (407, 53816), (434, 50468), (518, 42284), (616, 35557), (682, 32116), (814, 26908), (868, 25234), (961, 22792), (1036, 21142), (1147, 19096), (1364, 16058), (1628, 13454), (1736, 12617), (1922, 11396), (2072, 10571), (2294, 9548), (2387, 9176), (2728, 8029), (2849, 7688), (3256, 6727), (3844, 5698), (4588, 4774)]