20994004

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{619}}^1$

素因数の和:823

約数の個数: 24

約数和(自身を含む): 37671200

約数和(自身を除く): 16677196

約数列:

[1, 2, 4, 61, 122, 139, 244, 278, 556, 619, 1238, 2476, 8479, 16958, 33916, 37759, 75518, 86041, 151036, 172082, 344164, 5248501, 10497002, 20994004]

約数ペア:

[(1, 20994004), (2, 10497002), (4, 5248501), (61, 344164), (122, 172082), (139, 151036), (244, 86041), (278, 75518), (556, 37759), (619, 33916), (1238, 16958), (2476, 8479)]