20931487199

素因数分解:

$7^1\times {\mathrm{19}}^2\times {\mathrm{631}}^1\times {\mathrm{13127}}^1$

素因数の和:13803

約数の個数: 24

約数和(自身を含む): 25288939008

約数和(自身を除く): 4357451809

約数列:

[1, 7, 19, 133, 361, 631, 2527, 4417, 11989, 13127, 83923, 91889, 227791, 249413, 1594537, 1745891, 4738847, 8283137, 33171929, 57981959, 157379603, 1101657221, 2990212457, 20931487199]

約数ペア:

[(1, 20931487199), (7, 2990212457), (19, 1101657221), (133, 157379603), (361, 57981959), (631, 33171929), (2527, 8283137), (4417, 4738847), (11989, 1745891), (13127, 1594537), (83923, 249413), (91889, 227791)]