209885761

素因数分解:

${\mathrm{19}}^2\times {\mathrm{421}}^1\times {\mathrm{1381}}^1$

素因数の和:1840

約数の個数: 12

約数和(自身を含む): 222200724

約数和(自身を除く): 12314963

約数列:

[1, 19, 361, 421, 1381, 7999, 26239, 151981, 498541, 581401, 11046619, 209885761]

約数ペア:

[(1, 209885761), (19, 11046619), (361, 581401), (421, 498541), (1381, 151981), (7999, 26239)]