20425551

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{197}}^1$

素因数の和:343

約数の個数: 32

約数和(自身を含む): 30792960

約数和(自身を除く): 10367409

約数列:

[1, 3, 17, 19, 51, 57, 107, 197, 321, 323, 591, 969, 1819, 2033, 3349, 3743, 5457, 6099, 10047, 11229, 21079, 34561, 63237, 63631, 103683, 190893, 358343, 400501, 1075029, 1201503, 6808517, 20425551]

約数ペア:

[(1, 20425551), (3, 6808517), (17, 1201503), (19, 1075029), (51, 400501), (57, 358343), (107, 190893), (197, 103683), (321, 63631), (323, 63237), (591, 34561), (969, 21079), (1819, 11229), (2033, 10047), (3349, 6099), (3743, 5457)]