21157248

素因数分解:

$2^7\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{463}}^1$

素因数の和:504

約数の個数: 128

約数和(自身を含む): 68152320

約数和(自身を除く): 46995072

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 17, 21, 24, 28, 32, 34, 42, 48, 51, 56, 64, 68, 84, 96, 102, 112, 119, 128, 136, 168, 192, 204, 224, 238, 272, 336, 357, 384, 408, 448, 463, 476, 544, 672, 714, 816, 896, 926, 952, 1088, 1344, 1389, 1428, 1632, 1852, 1904, 2176, 2688, 2778, 2856, 3241, 3264, 3704, 3808, 5556, 5712, 6482, 6528, 7408, 7616, 7871, 9723, 11112, 11424, 12964, 14816, 15232, 15742, 19446, 22224, 22848, 23613, 25928, 29632, 31484, 38892, 44448, 45696, 47226, 51856, 55097, 59264, 62968, 77784, 88896, 94452, 103712, 110194, 125936, 155568, 165291, 177792, 188904, 207424, 220388, 251872, 311136, 330582, 377808, 414848, 440776, 503744, 622272, 661164, 755616, 881552, 1007488, 1244544, 1322328, 1511232, 1763104, 2644656, 3022464, 3526208, 5289312, 7052416, 10578624, 21157248]

約数ペア:

[(1, 21157248), (2, 10578624), (3, 7052416), (4, 5289312), (6, 3526208), (7, 3022464), (8, 2644656), (12, 1763104), (14, 1511232), (16, 1322328), (17, 1244544), (21, 1007488), (24, 881552), (28, 755616), (32, 661164), (34, 622272), (42, 503744), (48, 440776), (51, 414848), (56, 377808), (64, 330582), (68, 311136), (84, 251872), (96, 220388), (102, 207424), (112, 188904), (119, 177792), (128, 165291), (136, 155568), (168, 125936), (192, 110194), (204, 103712), (224, 94452), (238, 88896), (272, 77784), (336, 62968), (357, 59264), (384, 55097), (408, 51856), (448, 47226), (463, 45696), (476, 44448), (544, 38892), (672, 31484), (714, 29632), (816, 25928), (896, 23613), (926, 22848), (952, 22224), (1088, 19446), (1344, 15742), (1389, 15232), (1428, 14816), (1632, 12964), (1852, 11424), (1904, 11112), (2176, 9723), (2688, 7871), (2778, 7616), (2856, 7408), (3241, 6528), (3264, 6482), (3704, 5712), (3808, 5556)]