21435516

素因数分解:

$2^2\times 3^6\times {\mathrm{7351}}^1$

素因数の和:7373

約数の個数: 42

約数和(自身を含む): 56250152

約数和(自身を除く): 34814636

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 243, 324, 486, 729, 972, 1458, 2916, 7351, 14702, 22053, 29404, 44106, 66159, 88212, 132318, 198477, 264636, 396954, 595431, 793908, 1190862, 1786293, 2381724, 3572586, 5358879, 7145172, 10717758, 21435516]

約数ペア:

[(1, 21435516), (2, 10717758), (3, 7145172), (4, 5358879), (6, 3572586), (9, 2381724), (12, 1786293), (18, 1190862), (27, 793908), (36, 595431), (54, 396954), (81, 264636), (108, 198477), (162, 132318), (243, 88212), (324, 66159), (486, 44106), (729, 29404), (972, 22053), (1458, 14702), (2916, 7351)]