21317696

素因数分解:

$2^6\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{373}}^1$

素因数の和:451

約数の個数: 56

約数和(自身を含む): 45598080

約数和(自身を除く): 24280384

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 47, 64, 76, 94, 152, 188, 304, 373, 376, 608, 746, 752, 893, 1216, 1492, 1504, 1786, 2984, 3008, 3572, 5968, 7087, 7144, 11936, 14174, 14288, 17531, 23872, 28348, 28576, 35062, 56696, 57152, 70124, 113392, 140248, 226784, 280496, 333089, 453568, 560992, 666178, 1121984, 1332356, 2664712, 5329424, 10658848, 21317696]

約数ペア:

[(1, 21317696), (2, 10658848), (4, 5329424), (8, 2664712), (16, 1332356), (19, 1121984), (32, 666178), (38, 560992), (47, 453568), (64, 333089), (76, 280496), (94, 226784), (152, 140248), (188, 113392), (304, 70124), (373, 57152), (376, 56696), (608, 35062), (746, 28576), (752, 28348), (893, 23872), (1216, 17531), (1492, 14288), (1504, 14174), (1786, 11936), (2984, 7144), (3008, 7087), (3572, 5968)]