21205101

素因数分解:

$3^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1\times {\mathrm{683}}^1$

素因数の和:896

約数の個数: 16

約数和(自身を含む): 28892160

約数和(自身を除く): 7687059

約数列:

[1, 3, 79, 131, 237, 393, 683, 2049, 10349, 31047, 53957, 89473, 161871, 268419, 7068367, 21205101]

約数ペア:

[(1, 21205101), (3, 7068367), (79, 268419), (131, 161871), (237, 89473), (393, 53957), (683, 31047), (2049, 10349)]