21817818

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{1091}}^1$

素因数の和:1211

約数の個数: 48

約数和(自身を含む): 52127712

約数和(自身を除く): 30309894

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 101, 198, 202, 303, 606, 909, 1091, 1111, 1818, 2182, 2222, 3273, 3333, 6546, 6666, 9819, 9999, 12001, 19638, 19998, 24002, 36003, 72006, 108009, 110191, 216018, 220382, 330573, 661146, 991719, 1212101, 1983438, 2424202, 3636303, 7272606, 10908909, 21817818]

約数ペア:

[(1, 21817818), (2, 10908909), (3, 7272606), (6, 3636303), (9, 2424202), (11, 1983438), (18, 1212101), (22, 991719), (33, 661146), (66, 330573), (99, 220382), (101, 216018), (198, 110191), (202, 108009), (303, 72006), (606, 36003), (909, 24002), (1091, 19998), (1111, 19638), (1818, 12001), (2182, 9999), (2222, 9819), (3273, 6666), (3333, 6546)]