21031902

素因数分解:

$2^1\times 3^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{937}}^1$

素因数の和:1017

約数の個数: 48

約数和(自身を含む): 48288240

約数和(自身を除く): 27256338

約数列:

[1, 2, 3, 6, 9, 18, 29, 43, 58, 86, 87, 129, 174, 258, 261, 387, 522, 774, 937, 1247, 1874, 2494, 2811, 3741, 5622, 7482, 8433, 11223, 16866, 22446, 27173, 40291, 54346, 80582, 81519, 120873, 163038, 241746, 244557, 362619, 489114, 725238, 1168439, 2336878, 3505317, 7010634, 10515951, 21031902]

約数ペア:

[(1, 21031902), (2, 10515951), (3, 7010634), (6, 3505317), (9, 2336878), (18, 1168439), (29, 725238), (43, 489114), (58, 362619), (86, 244557), (87, 241746), (129, 163038), (174, 120873), (258, 81519), (261, 80582), (387, 54346), (522, 40291), (774, 27173), (937, 22446), (1247, 16866), (1874, 11223), (2494, 8433), (2811, 7482), (3741, 5622)]