19668033

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{281}}^1$

素因数の和:406

約数の個数: 48

約数和(自身を含む): 35897472

約数和(自身を除く): 16229439

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 101, 231, 281, 303, 693, 707, 843, 909, 1111, 1967, 2121, 2529, 3091, 3333, 5901, 6363, 7777, 9273, 9999, 17703, 21637, 23331, 27819, 28381, 64911, 69993, 85143, 194733, 198667, 255429, 312191, 596001, 936573, 1788003, 2185337, 2809719, 6556011, 19668033]

約数ペア:

[(1, 19668033), (3, 6556011), (7, 2809719), (9, 2185337), (11, 1788003), (21, 936573), (33, 596001), (63, 312191), (77, 255429), (99, 198667), (101, 194733), (231, 85143), (281, 69993), (303, 64911), (693, 28381), (707, 27819), (843, 23331), (909, 21637), (1111, 17703), (1967, 9999), (2121, 9273), (2529, 7777), (3091, 6363), (3333, 5901)]