21064638

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{9463}}^1$

素因数の和:9528

約数の個数: 32

約数和(自身を含む): 49061376

約数和(自身を除く): 27996738

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 53, 106, 159, 318, 371, 742, 1113, 2226, 9463, 18926, 28389, 56778, 66241, 132482, 198723, 397446, 501539, 1003078, 1504617, 3009234, 3510773, 7021546, 10532319, 21064638]

約数ペア:

[(1, 21064638), (2, 10532319), (3, 7021546), (6, 3510773), (7, 3009234), (14, 1504617), (21, 1003078), (42, 501539), (53, 397446), (106, 198723), (159, 132482), (318, 66241), (371, 56778), (742, 28389), (1113, 18926), (2226, 9463)]