21872896

素因数分解:

$2^8\times {\mathrm{43}}^1\times {\mathrm{1987}}^1$

素因数の和:2046

約数の個数: 36

約数和(自身を含む): 44698192

約数和(自身を除く): 22825296

約数列:

[1, 2, 4, 8, 16, 32, 43, 64, 86, 128, 172, 256, 344, 688, 1376, 1987, 2752, 3974, 5504, 7948, 11008, 15896, 31792, 63584, 85441, 127168, 170882, 254336, 341764, 508672, 683528, 1367056, 2734112, 5468224, 10936448, 21872896]

約数ペア:

[(1, 21872896), (2, 10936448), (4, 5468224), (8, 2734112), (16, 1367056), (32, 683528), (43, 508672), (64, 341764), (86, 254336), (128, 170882), (172, 127168), (256, 85441), (344, 63584), (688, 31792), (1376, 15896), (1987, 11008), (2752, 7948), (3974, 5504)]