21268852

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{503}}^1$

素因数の和:580

約数の個数: 36

約数和(自身を含む): 42039648

約数和(自身を除く): 20770796

約数列:

[1, 2, 4, 11, 22, 31, 44, 62, 124, 341, 503, 682, 961, 1006, 1364, 1922, 2012, 3844, 5533, 10571, 11066, 15593, 21142, 22132, 31186, 42284, 62372, 171523, 343046, 483383, 686092, 966766, 1933532, 5317213, 10634426, 21268852]

約数ペア:

[(1, 21268852), (2, 10634426), (4, 5317213), (11, 1933532), (22, 966766), (31, 686092), (44, 483383), (62, 343046), (124, 171523), (341, 62372), (503, 42284), (682, 31186), (961, 22132), (1006, 21142), (1364, 15593), (1922, 11066), (2012, 10571), (3844, 5533)]