21000953351

素因数分解:

$7^1\times {\mathrm{131}}^1\times {\mathrm{227}}^1\times {\mathrm{233}}^1\times {\mathrm{433}}^1$

素因数の和:1031

約数の個数: 32

約数和(自身を含む): 24451435008

約数和(自身を除く): 3450481657

約数列:

[1, 7, 131, 227, 233, 433, 917, 1589, 1631, 3031, 29737, 30523, 52891, 56723, 98291, 100889, 208159, 213661, 370237, 397061, 688037, 706223, 6928721, 12876121, 13216459, 22901803, 48501047, 90132847, 92515213, 160312621, 3000136193, 21000953351]

約数ペア:

[(1, 21000953351), (7, 3000136193), (131, 160312621), (227, 92515213), (233, 90132847), (433, 48501047), (917, 22901803), (1589, 13216459), (1631, 12876121), (3031, 6928721), (29737, 706223), (30523, 688037), (52891, 397061), (56723, 370237), (98291, 213661), (100889, 208159)]