21284904

素因数分解:

$2^3\times 3^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{223}}^1$

素因数の和:370

約数の個数: 64

約数和(自身を含む): 55319040

約数和(自身を除く): 34034136

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 41, 82, 97, 123, 164, 194, 223, 246, 291, 328, 388, 446, 492, 582, 669, 776, 892, 984, 1164, 1338, 1784, 2328, 2676, 3977, 5352, 7954, 9143, 11931, 15908, 18286, 21631, 23862, 27429, 31816, 36572, 43262, 47724, 54858, 64893, 73144, 86524, 95448, 109716, 129786, 173048, 219432, 259572, 519144, 886871, 1773742, 2660613, 3547484, 5321226, 7094968, 10642452, 21284904]

約数ペア:

[(1, 21284904), (2, 10642452), (3, 7094968), (4, 5321226), (6, 3547484), (8, 2660613), (12, 1773742), (24, 886871), (41, 519144), (82, 259572), (97, 219432), (123, 173048), (164, 129786), (194, 109716), (223, 95448), (246, 86524), (291, 73144), (328, 64893), (388, 54858), (446, 47724), (492, 43262), (582, 36572), (669, 31816), (776, 27429), (892, 23862), (984, 21631), (1164, 18286), (1338, 15908), (1784, 11931), (2328, 9143), (2676, 7954), (3977, 5352)]