19806201

素因数分解:

$3^6\times {\mathrm{101}}^1\times {\mathrm{269}}^1$

素因数の和:388

約数の個数: 28

約数和(自身を含む): 30101220

約数和(自身を除く): 10295019

約数列:

[1, 3, 9, 27, 81, 101, 243, 269, 303, 729, 807, 909, 2421, 2727, 7263, 8181, 21789, 24543, 27169, 65367, 73629, 81507, 196101, 244521, 733563, 2200689, 6602067, 19806201]

約数ペア:

[(1, 19806201), (3, 6602067), (9, 2200689), (27, 733563), (81, 244521), (101, 196101), (243, 81507), (269, 73629), (303, 65367), (729, 27169), (807, 24543), (909, 21789), (2421, 8181), (2727, 7263)]