221564812

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{255259}}^1$

素因数の和:255301

約数の個数: 24

約数和(自身を含む): 457425920

約数和(自身を除く): 235861108

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 255259, 510518, 1021036, 1786813, 3573626, 7147252, 7913029, 15826058, 31652116, 55391203, 110782406, 221564812]

約数ペア:

[(1, 221564812), (2, 110782406), (4, 55391203), (7, 31652116), (14, 15826058), (28, 7913029), (31, 7147252), (62, 3573626), (124, 1786813), (217, 1021036), (434, 510518), (868, 255259)]