21717747519

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{739}}^1\times {\mathrm{18379}}^1$

素因数の和:19175

約数の個数: 32

約数和(自身を含む): 31990022400

約数和(自身を除く): 10272274881

約数列:

[1, 3, 13, 39, 41, 123, 533, 739, 1599, 2217, 9607, 18379, 28821, 30299, 55137, 90897, 238927, 393887, 716781, 753539, 1181661, 2260617, 9796007, 13582081, 29388021, 40746243, 176567053, 529701159, 556865321, 1670595963, 7239249173, 21717747519]

約数ペア:

[(1, 21717747519), (3, 7239249173), (13, 1670595963), (39, 556865321), (41, 529701159), (123, 176567053), (533, 40746243), (739, 29388021), (1599, 13582081), (2217, 9796007), (9607, 2260617), (18379, 1181661), (28821, 753539), (30299, 716781), (55137, 393887), (90897, 238927)]