19870486

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{3413}}^1$

素因数の和:3527

約数の個数: 16

約数和(自身を含む): 30971808

約数和(自身を除く): 11101322

約数列:

[1, 2, 41, 71, 82, 142, 2911, 3413, 5822, 6826, 139933, 242323, 279866, 484646, 9935243, 19870486]

約数ペア:

[(1, 19870486), (2, 9935243), (41, 484646), (71, 279866), (82, 242323), (142, 139933), (2911, 6826), (3413, 5822)]