20120778517

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{132589}}^1$

素因数の和:132785

約数の個数: 24

約数和(自身を含む): 24789026400

約数和(自身を除く): 4668247883

約数列:

[1, 7, 19, 49, 133, 163, 931, 1141, 3097, 7987, 21679, 132589, 151753, 928123, 2519191, 6496861, 17634337, 21612007, 123440359, 151284049, 410628133, 1058988343, 2874396931, 20120778517]

約数ペア:

[(1, 20120778517), (7, 2874396931), (19, 1058988343), (49, 410628133), (133, 151284049), (163, 123440359), (931, 21612007), (1141, 17634337), (3097, 6496861), (7987, 2519191), (21679, 928123), (132589, 151753)]