21370291160

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{5507807}}^1$

素因数の和:5507915

約数の個数: 32

約数和(自身を含む): 48578866560

約数和(自身を除く): 27208575400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 5507807, 11015614, 22031228, 27539035, 44062456, 55078070, 110156140, 220312280, 534257279, 1068514558, 2137029116, 2671286395, 4274058232, 5342572790, 10685145580, 21370291160]

約数ペア:

[(1, 21370291160), (2, 10685145580), (4, 5342572790), (5, 4274058232), (8, 2671286395), (10, 2137029116), (20, 1068514558), (40, 534257279), (97, 220312280), (194, 110156140), (388, 55078070), (485, 44062456), (776, 27539035), (970, 22031228), (1940, 11015614), (3880, 5507807)]