219908521

素因数分解:

$7^2\times {\mathrm{131}}^1\times {\mathrm{34259}}^1$

素因数の和:34404

約数の個数: 12

約数和(自身を含む): 257772240

約数和(自身を除く): 37863719

約数列:

[1, 7, 49, 131, 917, 6419, 34259, 239813, 1678691, 4487929, 31415503, 219908521]

約数ペア:

[(1, 219908521), (7, 31415503), (49, 4487929), (131, 1678691), (917, 239813), (6419, 34259)]