820959771

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{331}}^1\times {\mathrm{821}}^1$

素因数の和:1227

約数の個数: 32

約数和(自身を含む): 1178945280

約数和(自身を除く): 357985509

約数列:

[1, 3, 19, 53, 57, 159, 331, 821, 993, 1007, 2463, 3021, 6289, 15599, 17543, 18867, 43513, 46797, 52629, 130539, 271751, 333317, 815253, 826747, 999951, 2480241, 5163269, 14402803, 15489807, 43208409, 273653257, 820959771]

約数ペア:

[(1, 820959771), (3, 273653257), (19, 43208409), (53, 15489807), (57, 14402803), (159, 5163269), (331, 2480241), (821, 999951), (993, 826747), (1007, 815253), (2463, 333317), (3021, 271751), (6289, 130539), (15599, 52629), (17543, 46797), (18867, 43513)]