21342956

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1$

素因数の和:266

約数の個数: 48

約数和(自身を含む): 41731200

約数和(自身を除く): 20388244

約数列:

[1, 2, 4, 17, 29, 34, 58, 68, 79, 116, 137, 158, 274, 316, 493, 548, 986, 1343, 1972, 2291, 2329, 2686, 3973, 4582, 4658, 5372, 7946, 9164, 9316, 10823, 15892, 21646, 38947, 43292, 67541, 77894, 135082, 155788, 183991, 270164, 313867, 367982, 627734, 735964, 1255468, 5335739, 10671478, 21342956]

約数ペア:

[(1, 21342956), (2, 10671478), (4, 5335739), (17, 1255468), (29, 735964), (34, 627734), (58, 367982), (68, 313867), (79, 270164), (116, 183991), (137, 155788), (158, 135082), (274, 77894), (316, 67541), (493, 43292), (548, 38947), (986, 21646), (1343, 15892), (1972, 10823), (2291, 9316), (2329, 9164), (2686, 7946), (3973, 5372), (4582, 4658)]