20815046

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{509}}^1$

素因数の和:668

約数の個数: 32

約数和(自身を含む): 37601280

約数和(自身を除く): 16786234

約数列:

[1, 2, 7, 14, 23, 46, 127, 161, 254, 322, 509, 889, 1018, 1778, 2921, 3563, 5842, 7126, 11707, 20447, 23414, 40894, 64643, 81949, 129286, 163898, 452501, 905002, 1486789, 2973578, 10407523, 20815046]

約数ペア:

[(1, 20815046), (2, 10407523), (7, 2973578), (14, 1486789), (23, 905002), (46, 452501), (127, 163898), (161, 129286), (254, 81949), (322, 64643), (509, 40894), (889, 23414), (1018, 20447), (1778, 11707), (2921, 7126), (3563, 5842)]