821919119

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{541}}^1\times {\mathrm{11423}}^1$

素因数の和:11990

約数の個数: 16

約数和(自身を含む): 990689280

約数和(自身を除く): 168770161

約数列:

[1, 7, 19, 133, 541, 3787, 10279, 11423, 71953, 79961, 217037, 1519259, 6179843, 43258901, 117417017, 821919119]

約数ペア:

[(1, 821919119), (7, 117417017), (19, 43258901), (133, 6179843), (541, 1519259), (3787, 217037), (10279, 79961), (11423, 71953)]