219989973

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{171733}}^1$

素因数の和:171804

約数の個数: 16

約数和(自身を含む): 340720256

約数和(自身を除く): 120730283

約数列:

[1, 3, 7, 21, 61, 183, 427, 1281, 171733, 515199, 1202131, 3606393, 10475713, 31427139, 73329991, 219989973]

約数ペア:

[(1, 219989973), (3, 73329991), (7, 31427139), (21, 10475713), (61, 3606393), (183, 1202131), (427, 515199), (1281, 171733)]