21541744

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{191}}^1$

素因数の和:278

約数の個数: 80

約数和(自身を含む): 51425280

約数和(自身を除く): 29883536

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 53, 56, 76, 106, 112, 133, 152, 191, 212, 266, 304, 371, 382, 424, 532, 742, 764, 848, 1007, 1064, 1337, 1484, 1528, 2014, 2128, 2674, 2968, 3056, 3629, 4028, 5348, 5936, 7049, 7258, 8056, 10123, 10696, 14098, 14516, 16112, 20246, 21392, 25403, 28196, 29032, 40492, 50806, 56392, 58064, 70861, 80984, 101612, 112784, 141722, 161968, 192337, 203224, 283444, 384674, 406448, 566888, 769348, 1133776, 1346359, 1538696, 2692718, 3077392, 5385436, 10770872, 21541744]

約数ペア:

[(1, 21541744), (2, 10770872), (4, 5385436), (7, 3077392), (8, 2692718), (14, 1538696), (16, 1346359), (19, 1133776), (28, 769348), (38, 566888), (53, 406448), (56, 384674), (76, 283444), (106, 203224), (112, 192337), (133, 161968), (152, 141722), (191, 112784), (212, 101612), (266, 80984), (304, 70861), (371, 58064), (382, 56392), (424, 50806), (532, 40492), (742, 29032), (764, 28196), (848, 25403), (1007, 21392), (1064, 20246), (1337, 16112), (1484, 14516), (1528, 14098), (2014, 10696), (2128, 10123), (2674, 8056), (2968, 7258), (3056, 7049), (3629, 5936), (4028, 5348)]