21735077

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{229}}^1$

素因数の和:405

約数の個数: 24

約数和(自身を含む): 27531000

約数和(自身を除く): 5795923

約数列:

[1, 7, 13, 49, 91, 149, 229, 637, 1043, 1603, 1937, 2977, 7301, 11221, 13559, 20839, 34121, 94913, 145873, 238847, 443573, 1671929, 3105011, 21735077]

約数ペア:

[(1, 21735077), (7, 3105011), (13, 1671929), (49, 443573), (91, 238847), (149, 145873), (229, 94913), (637, 34121), (1043, 20839), (1603, 13559), (1937, 11221), (2977, 7301)]