21509632

素因数分解:

$2^9\times {\mathrm{43}}^1\times {\mathrm{977}}^1$

素因数の和:1038

約数の個数: 40

約数和(自身を含む): 44021736

約数和(自身を除く): 22512104

約数列:

[1, 2, 4, 8, 16, 32, 43, 64, 86, 128, 172, 256, 344, 512, 688, 977, 1376, 1954, 2752, 3908, 5504, 7816, 11008, 15632, 22016, 31264, 42011, 62528, 84022, 125056, 168044, 250112, 336088, 500224, 672176, 1344352, 2688704, 5377408, 10754816, 21509632]

約数ペア:

[(1, 21509632), (2, 10754816), (4, 5377408), (8, 2688704), (16, 1344352), (32, 672176), (43, 500224), (64, 336088), (86, 250112), (128, 168044), (172, 125056), (256, 84022), (344, 62528), (512, 42011), (688, 31264), (977, 22016), (1376, 15632), (1954, 11008), (2752, 7816), (3908, 5504)]