19655643

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{277}}^1$

素因数の和:427

約数の個数: 32

約数和(自身を含む): 31313920

約数和(自身を除く): 11658277

約数列:

[1, 3, 7, 21, 31, 93, 109, 217, 277, 327, 651, 763, 831, 1939, 2289, 3379, 5817, 8587, 10137, 23653, 25761, 30193, 60109, 70959, 90579, 180327, 211351, 634053, 935983, 2807949, 6551881, 19655643]

約数ペア:

[(1, 19655643), (3, 6551881), (7, 2807949), (21, 935983), (31, 634053), (93, 211351), (109, 180327), (217, 90579), (277, 70959), (327, 60109), (651, 30193), (763, 25761), (831, 23653), (1939, 10137), (2289, 8587), (3379, 5817)]