19980654

素因数分解:

$2^1\times 3^1\times {\mathrm{647}}^1\times {\mathrm{5147}}^1$

素因数の和:5799

約数の個数: 16

約数和(自身を含む): 40030848

約数和(自身を除く): 20050194

約数列:

[1, 2, 3, 6, 647, 1294, 1941, 3882, 5147, 10294, 15441, 30882, 3330109, 6660218, 9990327, 19980654]

約数ペア:

[(1, 19980654), (2, 9990327), (3, 6660218), (6, 3330109), (647, 30882), (1294, 15441), (1941, 10294), (3882, 5147)]