21755162

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:159

約数の個数: 64

約数和(自身を含む): 41247360

約数和(自身を除く): 19492198

約数列:

[1, 2, 11, 13, 22, 26, 29, 43, 58, 61, 86, 122, 143, 286, 319, 377, 473, 559, 638, 671, 754, 793, 946, 1118, 1247, 1342, 1586, 1769, 2494, 2623, 3538, 4147, 5246, 6149, 8294, 8723, 12298, 13717, 16211, 17446, 19459, 22997, 27434, 28853, 32422, 34099, 38918, 45994, 57706, 68198, 76067, 152134, 178321, 252967, 356642, 375089, 505934, 750178, 836737, 988871, 1673474, 1977742, 10877581, 21755162]

約数ペア:

[(1, 21755162), (2, 10877581), (11, 1977742), (13, 1673474), (22, 988871), (26, 836737), (29, 750178), (43, 505934), (58, 375089), (61, 356642), (86, 252967), (122, 178321), (143, 152134), (286, 76067), (319, 68198), (377, 57706), (473, 45994), (559, 38918), (638, 34099), (671, 32422), (754, 28853), (793, 27434), (946, 22997), (1118, 19459), (1247, 17446), (1342, 16211), (1586, 13717), (1769, 12298), (2494, 8723), (2623, 8294), (3538, 6149), (4147, 5246)]