20565798911

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{307}}^1\times {\mathrm{13613}}^1$

素因数の和:13983

約数の個数: 32

約数和(自身を含む): 25494120960

約数和(自身を除く): 4928322049

約数列:

[1, 7, 19, 37, 133, 259, 307, 703, 2149, 4921, 5833, 11359, 13613, 40831, 79513, 95291, 215821, 258647, 503681, 1510747, 1810529, 3525767, 4179191, 9569939, 29254337, 66989573, 79404629, 154630067, 555832403, 1082410469, 2937971273, 20565798911]

約数ペア:

[(1, 20565798911), (7, 2937971273), (19, 1082410469), (37, 555832403), (133, 154630067), (259, 79404629), (307, 66989573), (703, 29254337), (2149, 9569939), (4921, 4179191), (5833, 3525767), (11359, 1810529), (13613, 1510747), (40831, 503681), (79513, 258647), (95291, 215821)]