20121309131

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{2503}}^1\times {\mathrm{9491}}^1$

素因数の和:12023

約数の個数: 24

約数和(自身を含む): 25289117952

約数和(自身を除く): 5167808821

約数列:

[1, 7, 11, 77, 121, 847, 2503, 9491, 17521, 27533, 66437, 104401, 192731, 302863, 730807, 1148411, 2120041, 8038877, 23755973, 166291811, 261315703, 1829209921, 2874472733, 20121309131]

約数ペア:

[(1, 20121309131), (7, 2874472733), (11, 1829209921), (77, 261315703), (121, 166291811), (847, 23755973), (2503, 8038877), (9491, 2120041), (17521, 1148411), (27533, 730807), (66437, 302863), (104401, 192731)]