19992023991

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{12990269}}^1$

素因数の和:12990300

約数の個数: 20

約数和(自身を含む): 31436453400

約数和(自身を除く): 11444429409

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 12990269, 38970807, 116912421, 246815111, 350737263, 740445333, 1052211789, 2221335999, 6664007997, 19992023991]

約数ペア:

[(1, 19992023991), (3, 6664007997), (9, 2221335999), (19, 1052211789), (27, 740445333), (57, 350737263), (81, 246815111), (171, 116912421), (513, 38970807), (1539, 12990269)]