21167104

素因数分解:

$2^{10}\times 7^1\times {\mathrm{2953}}^1$

素因数の和:2980

約数の個数: 44

約数和(自身を含む): 48374704

約数和(自身を除く): 27207600

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 512, 896, 1024, 1792, 2953, 3584, 5906, 7168, 11812, 20671, 23624, 41342, 47248, 82684, 94496, 165368, 188992, 330736, 377984, 661472, 755968, 1322944, 1511936, 2645888, 3023872, 5291776, 10583552, 21167104]

約数ペア:

[(1, 21167104), (2, 10583552), (4, 5291776), (7, 3023872), (8, 2645888), (14, 1511936), (16, 1322944), (28, 755968), (32, 661472), (56, 377984), (64, 330736), (112, 188992), (128, 165368), (224, 94496), (256, 82684), (448, 47248), (512, 41342), (896, 23624), (1024, 20671), (1792, 11812), (2953, 7168), (3584, 5906)]