21007490

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{8111}}^1$

素因数の和:8162

約数の個数: 32

約数和(自身を含む): 44388864

約数和(自身を除く): 23381374

約数列:

[1, 2, 5, 7, 10, 14, 35, 37, 70, 74, 185, 259, 370, 518, 1295, 2590, 8111, 16222, 40555, 56777, 81110, 113554, 283885, 300107, 567770, 600214, 1500535, 2100749, 3001070, 4201498, 10503745, 21007490]

約数ペア:

[(1, 21007490), (2, 10503745), (5, 4201498), (7, 3001070), (10, 2100749), (14, 1500535), (35, 600214), (37, 567770), (70, 300107), (74, 283885), (185, 113554), (259, 81110), (370, 56777), (518, 40555), (1295, 16222), (2590, 8111)]