20197318

素因数分解:

$2^1\times {\mathrm{127}}^1\times {\mathrm{131}}^1\times {\mathrm{607}}^1$

素因数の和:867

約数の個数: 16

約数和(自身を含む): 30818304

約数和(自身を除く): 10620986

約数列:

[1, 2, 127, 131, 254, 262, 607, 1214, 16637, 33274, 77089, 79517, 154178, 159034, 10098659, 20197318]

約数ペア:

[(1, 20197318), (2, 10098659), (127, 159034), (131, 154178), (254, 79517), (262, 77089), (607, 33274), (1214, 16637)]