21895353

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{347}}^1$

素因数の和:419

約数の個数: 40

約数和(自身を含む): 35370720

約数和(自身を除く): 13475367

約数列:

[1, 3, 9, 19, 27, 41, 57, 81, 123, 171, 347, 369, 513, 779, 1041, 1107, 1539, 2337, 3123, 3321, 6593, 7011, 9369, 14227, 19779, 21033, 28107, 42681, 59337, 63099, 128043, 178011, 270313, 384129, 534033, 810939, 1152387, 2432817, 7298451, 21895353]

約数ペア:

[(1, 21895353), (3, 7298451), (9, 2432817), (19, 1152387), (27, 810939), (41, 534033), (57, 384129), (81, 270313), (123, 178011), (171, 128043), (347, 63099), (369, 59337), (513, 42681), (779, 28107), (1041, 21033), (1107, 19779), (1539, 14227), (2337, 9369), (3123, 7011), (3321, 6593)]