21401072

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{599}}^1$

素因数の和:654

約数の個数: 80

約数和(自身を含む): 53568000

約数和(自身を除く): 32166928

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 29, 44, 56, 58, 77, 88, 112, 116, 154, 176, 203, 232, 308, 319, 406, 464, 599, 616, 638, 812, 1198, 1232, 1276, 1624, 2233, 2396, 2552, 3248, 4193, 4466, 4792, 5104, 6589, 8386, 8932, 9584, 13178, 16772, 17371, 17864, 26356, 33544, 34742, 35728, 46123, 52712, 67088, 69484, 92246, 105424, 121597, 138968, 184492, 191081, 243194, 277936, 368984, 382162, 486388, 737968, 764324, 972776, 1337567, 1528648, 1945552, 2675134, 3057296, 5350268, 10700536, 21401072]

約数ペア:

[(1, 21401072), (2, 10700536), (4, 5350268), (7, 3057296), (8, 2675134), (11, 1945552), (14, 1528648), (16, 1337567), (22, 972776), (28, 764324), (29, 737968), (44, 486388), (56, 382162), (58, 368984), (77, 277936), (88, 243194), (112, 191081), (116, 184492), (154, 138968), (176, 121597), (203, 105424), (232, 92246), (308, 69484), (319, 67088), (406, 52712), (464, 46123), (599, 35728), (616, 34742), (638, 33544), (812, 26356), (1198, 17864), (1232, 17371), (1276, 16772), (1624, 13178), (2233, 9584), (2396, 8932), (2552, 8386), (3248, 6589), (4193, 5104), (4466, 4792)]