21443704

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{1987}}^1$

素因数の和:2083

約数の個数: 32

約数和(自身を含む): 42940800

約数和(自身を除く): 21497096

約数列:

[1, 2, 4, 8, 19, 38, 71, 76, 142, 152, 284, 568, 1349, 1987, 2698, 3974, 5396, 7948, 10792, 15896, 37753, 75506, 141077, 151012, 282154, 302024, 564308, 1128616, 2680463, 5360926, 10721852, 21443704]

約数ペア:

[(1, 21443704), (2, 10721852), (4, 5360926), (8, 2680463), (19, 1128616), (38, 564308), (71, 302024), (76, 282154), (142, 151012), (152, 141077), (284, 75506), (568, 37753), (1349, 15896), (1987, 10792), (2698, 7948), (3974, 5396)]