18978244

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{1193}}^1$

素因数の和:1335

約数の個数: 24

約数和(自身を含む): 34401528

約数和(自身を除く): 15423284

約数列:

[1, 2, 4, 41, 82, 97, 164, 194, 388, 1193, 2386, 3977, 4772, 7954, 15908, 48913, 97826, 115721, 195652, 231442, 462884, 4744561, 9489122, 18978244]

約数ペア:

[(1, 18978244), (2, 9489122), (4, 4744561), (41, 462884), (82, 231442), (97, 195652), (164, 115721), (194, 97826), (388, 48913), (1193, 15908), (2386, 7954), (3977, 4772)]