211978689

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{331}}^1\times {\mathrm{16421}}^1$

素因数の和:16768

約数の個数: 16

約数和(自身を含む): 305317824

約数和(自身を除く): 93339135

約数列:

[1, 3, 13, 39, 331, 993, 4303, 12909, 16421, 49263, 213473, 640419, 5435351, 16306053, 70659563, 211978689]

約数ペア:

[(1, 211978689), (3, 70659563), (13, 16306053), (39, 5435351), (331, 640419), (993, 213473), (4303, 49263), (12909, 16421)]