19647248

素因数分解:

$2^4\times {\mathrm{1009}}^1\times {\mathrm{1217}}^1$

素因数の和:2234

約数の個数: 20

約数和(自身を含む): 38135580

約数和(自身を除く): 18488332

約数列:

[1, 2, 4, 8, 16, 1009, 1217, 2018, 2434, 4036, 4868, 8072, 9736, 16144, 19472, 1227953, 2455906, 4911812, 9823624, 19647248]

約数ペア:

[(1, 19647248), (2, 9823624), (4, 4911812), (8, 2455906), (16, 1227953), (1009, 19472), (1217, 16144), (2018, 9736), (2434, 8072), (4036, 4868)]