21619712

素因数分解:

$2^{10}\times {\mathrm{43}}^1\times {\mathrm{491}}^1$

素因数の和:554

約数の個数: 44

約数和(自身を含む): 44313456

約数和(自身を除く): 22693744

約数列:

[1, 2, 4, 8, 16, 32, 43, 64, 86, 128, 172, 256, 344, 491, 512, 688, 982, 1024, 1376, 1964, 2752, 3928, 5504, 7856, 11008, 15712, 21113, 22016, 31424, 42226, 44032, 62848, 84452, 125696, 168904, 251392, 337808, 502784, 675616, 1351232, 2702464, 5404928, 10809856, 21619712]

約数ペア:

[(1, 21619712), (2, 10809856), (4, 5404928), (8, 2702464), (16, 1351232), (32, 675616), (43, 502784), (64, 337808), (86, 251392), (128, 168904), (172, 125696), (256, 84452), (344, 62848), (491, 44032), (512, 42226), (688, 31424), (982, 22016), (1024, 21113), (1376, 15712), (1964, 11008), (2752, 7856), (3928, 5504)]