19782567

素因数分解:

$3^2\times 7^1\times {\mathrm{101}}^1\times {\mathrm{3109}}^1$

素因数の和:3223

約数の個数: 24

約数和(自身を含む): 32990880

約数和(自身を除く): 13208313

約数列:

[1, 3, 7, 9, 21, 63, 101, 303, 707, 909, 2121, 3109, 6363, 9327, 21763, 27981, 65289, 195867, 314009, 942027, 2198063, 2826081, 6594189, 19782567]

約数ペア:

[(1, 19782567), (3, 6594189), (7, 2826081), (9, 2198063), (21, 942027), (63, 314009), (101, 195867), (303, 65289), (707, 27981), (909, 21763), (2121, 9327), (3109, 6363)]