21269864

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:151

約数の個数: 96

約数和(自身を含む): 51965760

約数和(自身を除く): 30695896

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 43, 44, 56, 73, 77, 86, 88, 121, 146, 154, 172, 242, 292, 301, 308, 344, 473, 484, 511, 584, 602, 616, 803, 847, 946, 968, 1022, 1204, 1606, 1694, 1892, 2044, 2408, 3139, 3212, 3311, 3388, 3784, 4088, 5203, 5621, 6278, 6424, 6622, 6776, 8833, 10406, 11242, 12556, 13244, 17666, 20812, 21973, 22484, 25112, 26488, 34529, 35332, 36421, 41624, 43946, 44968, 61831, 69058, 70664, 72842, 87892, 123662, 138116, 145684, 175784, 241703, 247324, 276232, 291368, 379819, 483406, 494648, 759638, 966812, 1519276, 1933624, 2658733, 3038552, 5317466, 10634932, 21269864]

約数ペア:

[(1, 21269864), (2, 10634932), (4, 5317466), (7, 3038552), (8, 2658733), (11, 1933624), (14, 1519276), (22, 966812), (28, 759638), (43, 494648), (44, 483406), (56, 379819), (73, 291368), (77, 276232), (86, 247324), (88, 241703), (121, 175784), (146, 145684), (154, 138116), (172, 123662), (242, 87892), (292, 72842), (301, 70664), (308, 69058), (344, 61831), (473, 44968), (484, 43946), (511, 41624), (584, 36421), (602, 35332), (616, 34529), (803, 26488), (847, 25112), (946, 22484), (968, 21973), (1022, 20812), (1204, 17666), (1606, 13244), (1694, 12556), (1892, 11242), (2044, 10406), (2408, 8833), (3139, 6776), (3212, 6622), (3311, 6424), (3388, 6278), (3784, 5621), (4088, 5203)]