21495265

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{283}}^1\times {\mathrm{1381}}^1$

素因数の和:1680

約数の個数: 16

約数和(自身を含む): 28259136

約数和(自身を除く): 6763871

約数列:

[1, 5, 11, 55, 283, 1381, 1415, 3113, 6905, 15191, 15565, 75955, 390823, 1954115, 4299053, 21495265]

約数ペア:

[(1, 21495265), (5, 4299053), (11, 1954115), (55, 390823), (283, 75955), (1381, 15565), (1415, 15191), (3113, 6905)]