20859516

素因数分解:

$2^2\times 3^2\times {\mathrm{71}}^1\times {\mathrm{8161}}^1$

素因数の和:8242

約数の個数: 36

約数和(自身を含む): 53477424

約数和(自身を除く): 32617908

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 71, 142, 213, 284, 426, 639, 852, 1278, 2556, 8161, 16322, 24483, 32644, 48966, 73449, 97932, 146898, 293796, 579431, 1158862, 1738293, 2317724, 3476586, 5214879, 6953172, 10429758, 20859516]

約数ペア:

[(1, 20859516), (2, 10429758), (3, 6953172), (4, 5214879), (6, 3476586), (9, 2317724), (12, 1738293), (18, 1158862), (36, 579431), (71, 293796), (142, 146898), (213, 97932), (284, 73449), (426, 48966), (639, 32644), (852, 24483), (1278, 16322), (2556, 8161)]