21264795

素因数分解:

$3^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{2351}}^1$

素因数の和:2432

約数の個数: 32

約数和(自身を含む): 38384640

約数和(自身を除く): 17119845

約数列:

[1, 3, 5, 9, 15, 27, 45, 67, 135, 201, 335, 603, 1005, 1809, 2351, 3015, 7053, 9045, 11755, 21159, 35265, 63477, 105795, 157517, 317385, 472551, 787585, 1417653, 2362755, 4252959, 7088265, 21264795]

約数ペア:

[(1, 21264795), (3, 7088265), (5, 4252959), (9, 2362755), (15, 1417653), (27, 787585), (45, 472551), (67, 317385), (135, 157517), (201, 105795), (335, 63477), (603, 35265), (1005, 21159), (1809, 11755), (2351, 9045), (3015, 7053)]