1997619

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1$

素因数の和:187

約数の個数: 32

約数和(自身を含む): 3193344

約数和(自身を除く): 1195725

約数列:

[1, 3, 13, 17, 23, 39, 51, 69, 131, 221, 299, 391, 393, 663, 897, 1173, 1703, 2227, 3013, 5083, 5109, 6681, 9039, 15249, 28951, 39169, 51221, 86853, 117507, 153663, 665873, 1997619]

約数ペア:

[(1, 1997619), (3, 665873), (13, 153663), (17, 117507), (23, 86853), (39, 51221), (51, 39169), (69, 28951), (131, 15249), (221, 9039), (299, 6681), (391, 5109), (393, 5083), (663, 3013), (897, 2227), (1173, 1703)]