21190143

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1031}}^1$

素因数の和:1095

約数の個数: 32

約数和(自身を含む): 33288192

約数和(自身を除く): 12098049

約数列:

[1, 3, 13, 17, 31, 39, 51, 93, 221, 403, 527, 663, 1031, 1209, 1581, 3093, 6851, 13403, 17527, 20553, 31961, 40209, 52581, 95883, 227851, 415493, 543337, 683553, 1246479, 1630011, 7063381, 21190143]

約数ペア:

[(1, 21190143), (3, 7063381), (13, 1630011), (17, 1246479), (31, 683553), (39, 543337), (51, 415493), (93, 227851), (221, 95883), (403, 52581), (527, 40209), (663, 31961), (1031, 20553), (1209, 17527), (1581, 13403), (3093, 6851)]