21889020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{3761}}^1$

素因数の和:3870

約数の個数: 48

約数和(自身を含む): 61937568

約数和(自身を除く): 40048548

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 97, 194, 291, 388, 485, 582, 970, 1164, 1455, 1940, 2910, 3761, 5820, 7522, 11283, 15044, 18805, 22566, 37610, 45132, 56415, 75220, 112830, 225660, 364817, 729634, 1094451, 1459268, 1824085, 2188902, 3648170, 4377804, 5472255, 7296340, 10944510, 21889020]

約数ペア:

[(1, 21889020), (2, 10944510), (3, 7296340), (4, 5472255), (5, 4377804), (6, 3648170), (10, 2188902), (12, 1824085), (15, 1459268), (20, 1094451), (30, 729634), (60, 364817), (97, 225660), (194, 112830), (291, 75220), (388, 56415), (485, 45132), (582, 37610), (970, 22566), (1164, 18805), (1455, 15044), (1940, 11283), (2910, 7522), (3761, 5820)]