21711872

素因数分解:

$2^{10}\times 7^1\times {\mathrm{13}}^1\times {\mathrm{233}}^1$

素因数の和:273

約数の個数: 88

約数和(自身を含む): 53647776

約数和(自身を除く): 31935904

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 64, 91, 104, 112, 128, 182, 208, 224, 233, 256, 364, 416, 448, 466, 512, 728, 832, 896, 932, 1024, 1456, 1631, 1664, 1792, 1864, 2912, 3029, 3262, 3328, 3584, 3728, 5824, 6058, 6524, 6656, 7168, 7456, 11648, 12116, 13048, 13312, 14912, 21203, 23296, 24232, 26096, 29824, 42406, 46592, 48464, 52192, 59648, 84812, 93184, 96928, 104384, 119296, 169624, 193856, 208768, 238592, 339248, 387712, 417536, 678496, 775424, 835072, 1356992, 1550848, 1670144, 2713984, 3101696, 5427968, 10855936, 21711872]

約数ペア:

[(1, 21711872), (2, 10855936), (4, 5427968), (7, 3101696), (8, 2713984), (13, 1670144), (14, 1550848), (16, 1356992), (26, 835072), (28, 775424), (32, 678496), (52, 417536), (56, 387712), (64, 339248), (91, 238592), (104, 208768), (112, 193856), (128, 169624), (182, 119296), (208, 104384), (224, 96928), (233, 93184), (256, 84812), (364, 59648), (416, 52192), (448, 48464), (466, 46592), (512, 42406), (728, 29824), (832, 26096), (896, 24232), (932, 23296), (1024, 21203), (1456, 14912), (1631, 13312), (1664, 13048), (1792, 12116), (1864, 11648), (2912, 7456), (3029, 7168), (3262, 6656), (3328, 6524), (3584, 6058), (3728, 5824)]