31579947

素因数分解:

$3^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{3947}}^1$

素因数の和:4087

約数の個数: 24

約数和(自身を含む): 52555776

約数和(自身を除く): 20975829

約数列:

[1, 3, 7, 9, 21, 63, 127, 381, 889, 1143, 2667, 3947, 8001, 11841, 27629, 35523, 82887, 248661, 501269, 1503807, 3508883, 4511421, 10526649, 31579947]

約数ペア:

[(1, 31579947), (3, 10526649), (7, 4511421), (9, 3508883), (21, 1503807), (63, 501269), (127, 248661), (381, 82887), (889, 35523), (1143, 27629), (2667, 11841), (3947, 8001)]