1520341221

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{3810379}}^1$

素因数の和:3810408

約数の個数: 16

約数和(自身を含む): 2438643200

約数和(自身を除く): 918301979

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 3810379, 11431137, 26672653, 72397201, 80017959, 217191603, 506780407, 1520341221]

約数ペア:

[(1, 1520341221), (3, 506780407), (7, 217191603), (19, 80017959), (21, 72397201), (57, 26672653), (133, 11431137), (399, 3810379)]