21495528

素因数分解:

$2^3\times 3^2\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1$

素因数の和:239

約数の個数: 96

約数和(自身を含む): 61158240

約数和(自身を除く): 39662712

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 43, 53, 72, 86, 106, 129, 131, 159, 172, 212, 258, 262, 318, 344, 387, 393, 424, 477, 516, 524, 636, 774, 786, 954, 1032, 1048, 1179, 1272, 1548, 1572, 1908, 2279, 2358, 3096, 3144, 3816, 4558, 4716, 5633, 6837, 6943, 9116, 9432, 11266, 13674, 13886, 16899, 18232, 20511, 20829, 22532, 27348, 27772, 33798, 41022, 41658, 45064, 50697, 54696, 55544, 62487, 67596, 82044, 83316, 101394, 124974, 135192, 164088, 166632, 202788, 249948, 298549, 405576, 499896, 597098, 895647, 1194196, 1791294, 2388392, 2686941, 3582588, 5373882, 7165176, 10747764, 21495528]

約数ペア:

[(1, 21495528), (2, 10747764), (3, 7165176), (4, 5373882), (6, 3582588), (8, 2686941), (9, 2388392), (12, 1791294), (18, 1194196), (24, 895647), (36, 597098), (43, 499896), (53, 405576), (72, 298549), (86, 249948), (106, 202788), (129, 166632), (131, 164088), (159, 135192), (172, 124974), (212, 101394), (258, 83316), (262, 82044), (318, 67596), (344, 62487), (387, 55544), (393, 54696), (424, 50697), (477, 45064), (516, 41658), (524, 41022), (636, 33798), (774, 27772), (786, 27348), (954, 22532), (1032, 20829), (1048, 20511), (1179, 18232), (1272, 16899), (1548, 13886), (1572, 13674), (1908, 11266), (2279, 9432), (2358, 9116), (3096, 6943), (3144, 6837), (3816, 5633), (4558, 4716)]