21245568

素因数分解:

$2^7\times 3^1\times {\mathrm{61}}^1\times {\mathrm{907}}^1$

素因数の和:985

約数の個数: 64

約数和(自身を含む): 57421920

約数和(自身を除く): 36176352

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 61, 64, 96, 122, 128, 183, 192, 244, 366, 384, 488, 732, 907, 976, 1464, 1814, 1952, 2721, 2928, 3628, 3904, 5442, 5856, 7256, 7808, 10884, 11712, 14512, 21768, 23424, 29024, 43536, 55327, 58048, 87072, 110654, 116096, 165981, 174144, 221308, 331962, 348288, 442616, 663924, 885232, 1327848, 1770464, 2655696, 3540928, 5311392, 7081856, 10622784, 21245568]

約数ペア:

[(1, 21245568), (2, 10622784), (3, 7081856), (4, 5311392), (6, 3540928), (8, 2655696), (12, 1770464), (16, 1327848), (24, 885232), (32, 663924), (48, 442616), (61, 348288), (64, 331962), (96, 221308), (122, 174144), (128, 165981), (183, 116096), (192, 110654), (244, 87072), (366, 58048), (384, 55327), (488, 43536), (732, 29024), (907, 23424), (976, 21768), (1464, 14512), (1814, 11712), (1952, 10884), (2721, 7808), (2928, 7256), (3628, 5856), (3904, 5442)]