18712463

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{233}}^1$

素因数の和:407

約数の個数: 24

約数和(自身を含む): 24008400

約数和(自身を除く): 5295937

約数列:

[1, 7, 11, 49, 77, 149, 233, 539, 1043, 1631, 1639, 2563, 7301, 11417, 11473, 17941, 34717, 80311, 125587, 243019, 381887, 1701133, 2673209, 18712463]

約数ペア:

[(1, 18712463), (7, 2673209), (11, 1701133), (49, 381887), (77, 243019), (149, 125587), (233, 80311), (539, 34717), (1043, 17941), (1631, 11473), (1639, 11417), (2563, 7301)]