20478572212

素因数分解:

$2^2\times 7^1\times {\mathrm{1097}}^1\times {\mathrm{666707}}^1$

素因数の和:667815

約数の個数: 24

約数和(自身を含む): 40994541504

約数和(自身を除く): 20515969292

約数列:

[1, 2, 4, 7, 14, 28, 1097, 2194, 4388, 7679, 15358, 30716, 666707, 1333414, 2666828, 4666949, 9333898, 18667796, 731377579, 1462755158, 2925510316, 5119643053, 10239286106, 20478572212]

約数ペア:

[(1, 20478572212), (2, 10239286106), (4, 5119643053), (7, 2925510316), (14, 1462755158), (28, 731377579), (1097, 18667796), (2194, 9333898), (4388, 4666949), (7679, 2666828), (15358, 1333414), (30716, 666707)]