21292964

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{269}}^1$

素因数の和:548

約数の個数: 48

約数和(自身を含む): 46811520

約数和(自身を除く): 25518556

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 257, 269, 308, 514, 538, 1028, 1076, 1799, 1883, 2827, 2959, 3598, 3766, 5654, 5918, 7196, 7532, 11308, 11836, 19789, 20713, 39578, 41426, 69133, 79156, 82852, 138266, 276532, 483931, 760463, 967862, 1520926, 1935724, 3041852, 5323241, 10646482, 21292964]

約数ペア:

[(1, 21292964), (2, 10646482), (4, 5323241), (7, 3041852), (11, 1935724), (14, 1520926), (22, 967862), (28, 760463), (44, 483931), (77, 276532), (154, 138266), (257, 82852), (269, 79156), (308, 69133), (514, 41426), (538, 39578), (1028, 20713), (1076, 19789), (1799, 11836), (1883, 11308), (2827, 7532), (2959, 7196), (3598, 5918), (3766, 5654)]