21147786

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{29}}^2\times {\mathrm{127}}^1$

素因数の和:204

約数の個数: 72

約数和(自身を含む): 52176384

約数和(自身を除く): 31028598

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 29, 33, 58, 66, 87, 99, 127, 174, 198, 254, 261, 319, 381, 522, 638, 762, 841, 957, 1143, 1397, 1682, 1914, 2286, 2523, 2794, 2871, 3683, 4191, 5046, 5742, 7366, 7569, 8382, 9251, 11049, 12573, 15138, 18502, 22098, 25146, 27753, 33147, 40513, 55506, 66294, 81026, 83259, 106807, 121539, 166518, 213614, 243078, 320421, 364617, 640842, 729234, 961263, 1174877, 1922526, 2349754, 3524631, 7049262, 10573893, 21147786]

約数ペア:

[(1, 21147786), (2, 10573893), (3, 7049262), (6, 3524631), (9, 2349754), (11, 1922526), (18, 1174877), (22, 961263), (29, 729234), (33, 640842), (58, 364617), (66, 320421), (87, 243078), (99, 213614), (127, 166518), (174, 121539), (198, 106807), (254, 83259), (261, 81026), (319, 66294), (381, 55506), (522, 40513), (638, 33147), (762, 27753), (841, 25146), (957, 22098), (1143, 18502), (1397, 15138), (1682, 12573), (1914, 11049), (2286, 9251), (2523, 8382), (2794, 7569), (2871, 7366), (3683, 5742), (4191, 5046)]