21188992

素因数分解:

$2^7\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{149}}^1$

素因数の和:275

約数の個数: 64

約数和(自身を含む): 46818000

約数和(自身を除く): 25629008

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 88, 101, 128, 149, 176, 202, 298, 352, 404, 596, 704, 808, 1111, 1192, 1408, 1616, 1639, 2222, 2384, 3232, 3278, 4444, 4768, 6464, 6556, 8888, 9536, 12928, 13112, 15049, 17776, 19072, 26224, 30098, 35552, 52448, 60196, 71104, 104896, 120392, 142208, 165539, 209792, 240784, 331078, 481568, 662156, 963136, 1324312, 1926272, 2648624, 5297248, 10594496, 21188992]

約数ペア:

[(1, 21188992), (2, 10594496), (4, 5297248), (8, 2648624), (11, 1926272), (16, 1324312), (22, 963136), (32, 662156), (44, 481568), (64, 331078), (88, 240784), (101, 209792), (128, 165539), (149, 142208), (176, 120392), (202, 104896), (298, 71104), (352, 60196), (404, 52448), (596, 35552), (704, 30098), (808, 26224), (1111, 19072), (1192, 17776), (1408, 15049), (1616, 13112), (1639, 12928), (2222, 9536), (2384, 8888), (3232, 6556), (3278, 6464), (4444, 4768)]