19677518785

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{479}}^1\times {\mathrm{21013}}^1$

素因数の和:21537

約数の個数: 32

約数和(自身を含む): 26144778240

約数和(自身を除く): 6467259455

約数列:

[1, 5, 17, 23, 85, 115, 391, 479, 1955, 2395, 8143, 11017, 21013, 40715, 55085, 105065, 187289, 357221, 483299, 936445, 1786105, 2416495, 8216083, 10065227, 41080415, 50326135, 171108859, 231500221, 855544295, 1157501105, 3935503757, 19677518785]

約数ペア:

[(1, 19677518785), (5, 3935503757), (17, 1157501105), (23, 855544295), (85, 231500221), (115, 171108859), (391, 50326135), (479, 41080415), (1955, 10065227), (2395, 8216083), (8143, 2416495), (11017, 1786105), (21013, 936445), (40715, 483299), (55085, 357221), (105065, 187289)]