21504112

素因数分解:

$2^4\times 7^1\times {\mathrm{101}}^1\times {\mathrm{1901}}^1$

素因数の和:2017

約数の個数: 40

約数和(自身を含む): 48112992

約数和(自身を除く): 26608880

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 101, 112, 202, 404, 707, 808, 1414, 1616, 1901, 2828, 3802, 5656, 7604, 11312, 13307, 15208, 26614, 30416, 53228, 106456, 192001, 212912, 384002, 768004, 1344007, 1536008, 2688014, 3072016, 5376028, 10752056, 21504112]

約数ペア:

[(1, 21504112), (2, 10752056), (4, 5376028), (7, 3072016), (8, 2688014), (14, 1536008), (16, 1344007), (28, 768004), (56, 384002), (101, 212912), (112, 192001), (202, 106456), (404, 53228), (707, 30416), (808, 26614), (1414, 15208), (1616, 13307), (1901, 11312), (2828, 7604), (3802, 5656)]