21698936

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{991}}^1$

素因数の和:1044

約数の個数: 64

約数和(自身を含む): 51425280

約数和(自身を除く): 29726344

約数列:

[1, 2, 4, 7, 8, 14, 17, 23, 28, 34, 46, 56, 68, 92, 119, 136, 161, 184, 238, 322, 391, 476, 644, 782, 952, 991, 1288, 1564, 1982, 2737, 3128, 3964, 5474, 6937, 7928, 10948, 13874, 16847, 21896, 22793, 27748, 33694, 45586, 55496, 67388, 91172, 117929, 134776, 159551, 182344, 235858, 319102, 387481, 471716, 638204, 774962, 943432, 1276408, 1549924, 2712367, 3099848, 5424734, 10849468, 21698936]

約数ペア:

[(1, 21698936), (2, 10849468), (4, 5424734), (7, 3099848), (8, 2712367), (14, 1549924), (17, 1276408), (23, 943432), (28, 774962), (34, 638204), (46, 471716), (56, 387481), (68, 319102), (92, 235858), (119, 182344), (136, 159551), (161, 134776), (184, 117929), (238, 91172), (322, 67388), (391, 55496), (476, 45586), (644, 33694), (782, 27748), (952, 22793), (991, 21896), (1288, 16847), (1564, 13874), (1982, 10948), (2737, 7928), (3128, 6937), (3964, 5474)]