21088914

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{6521}}^1$

素因数の和:6551

約数の個数: 48

約数和(自身を含む): 53532576

約数和(自身を除く): 32443662

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 49, 66, 77, 98, 147, 154, 231, 294, 462, 539, 1078, 1617, 3234, 6521, 13042, 19563, 39126, 45647, 71731, 91294, 136941, 143462, 215193, 273882, 319529, 430386, 502117, 639058, 958587, 1004234, 1506351, 1917174, 3012702, 3514819, 7029638, 10544457, 21088914]

約数ペア:

[(1, 21088914), (2, 10544457), (3, 7029638), (6, 3514819), (7, 3012702), (11, 1917174), (14, 1506351), (21, 1004234), (22, 958587), (33, 639058), (42, 502117), (49, 430386), (66, 319529), (77, 273882), (98, 215193), (147, 143462), (154, 136941), (231, 91294), (294, 71731), (462, 45647), (539, 39126), (1078, 19563), (1617, 13042), (3234, 6521)]