21215196

素因数分解:

$2^2\times 3^4\times {\mathrm{65479}}^1$

素因数の和:65495

約数の個数: 30

約数和(自身を含む): 55461560

約数和(自身を除く): 34246364

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 324, 65479, 130958, 196437, 261916, 392874, 589311, 785748, 1178622, 1767933, 2357244, 3535866, 5303799, 7071732, 10607598, 21215196]

約数ペア:

[(1, 21215196), (2, 10607598), (3, 7071732), (4, 5303799), (6, 3535866), (9, 2357244), (12, 1767933), (18, 1178622), (27, 785748), (36, 589311), (54, 392874), (81, 261916), (108, 196437), (162, 130958), (324, 65479)]