19805912

素因数分解:

$2^3\times 7^1\times {\mathrm{353677}}^1$

素因数の和:353690

約数の個数: 16

約数和(自身を含む): 42441360

約数和(自身を除く): 22635448

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 353677, 707354, 1414708, 2475739, 2829416, 4951478, 9902956, 19805912]

約数ペア:

[(1, 19805912), (2, 9902956), (4, 4951478), (7, 2829416), (8, 2475739), (14, 1414708), (28, 707354), (56, 353677)]