21065554

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{8287}}^1$

素因数の和:8361

約数の個数: 16

約数和(自身を含む): 33417216

約数和(自身を除く): 12351662

約数列:

[1, 2, 31, 41, 62, 82, 1271, 2542, 8287, 16574, 256897, 339767, 513794, 679534, 10532777, 21065554]

約数ペア:

[(1, 21065554), (2, 10532777), (31, 679534), (41, 513794), (62, 339767), (82, 256897), (1271, 16574), (2542, 8287)]