21035256

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:189

約数の個数: 128

約数和(自身を含む): 62726400

約数和(自身を除く): 41691144

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 17, 22, 24, 33, 34, 43, 44, 51, 66, 68, 86, 88, 102, 109, 129, 132, 136, 172, 187, 204, 218, 258, 264, 327, 344, 374, 408, 436, 473, 516, 561, 654, 731, 748, 872, 946, 1032, 1122, 1199, 1308, 1419, 1462, 1496, 1853, 1892, 2193, 2244, 2398, 2616, 2838, 2924, 3597, 3706, 3784, 4386, 4488, 4687, 4796, 5559, 5676, 5848, 7194, 7412, 8041, 8772, 9374, 9592, 11118, 11352, 14061, 14388, 14824, 16082, 17544, 18748, 20383, 22236, 24123, 28122, 28776, 32164, 37496, 40766, 44472, 48246, 51557, 56244, 61149, 64328, 79679, 81532, 96492, 103114, 112488, 122298, 154671, 159358, 163064, 192984, 206228, 239037, 244596, 309342, 318716, 412456, 478074, 489192, 618684, 637432, 876469, 956148, 1237368, 1752938, 1912296, 2629407, 3505876, 5258814, 7011752, 10517628, 21035256]

約数ペア:

[(1, 21035256), (2, 10517628), (3, 7011752), (4, 5258814), (6, 3505876), (8, 2629407), (11, 1912296), (12, 1752938), (17, 1237368), (22, 956148), (24, 876469), (33, 637432), (34, 618684), (43, 489192), (44, 478074), (51, 412456), (66, 318716), (68, 309342), (86, 244596), (88, 239037), (102, 206228), (109, 192984), (129, 163064), (132, 159358), (136, 154671), (172, 122298), (187, 112488), (204, 103114), (218, 96492), (258, 81532), (264, 79679), (327, 64328), (344, 61149), (374, 56244), (408, 51557), (436, 48246), (473, 44472), (516, 40766), (561, 37496), (654, 32164), (731, 28776), (748, 28122), (872, 24123), (946, 22236), (1032, 20383), (1122, 18748), (1199, 17544), (1308, 16082), (1419, 14824), (1462, 14388), (1496, 14061), (1853, 11352), (1892, 11118), (2193, 9592), (2244, 9374), (2398, 8772), (2616, 8041), (2838, 7412), (2924, 7194), (3597, 5848), (3706, 5676), (3784, 5559), (4386, 4796), (4488, 4687)]