19534851

素因数分解:

$3^4\times 7^1\times {\mathrm{131}}^1\times {\mathrm{263}}^1$

素因数の和:413

約数の個数: 40

約数和(自身を含む): 33732864

約数和(自身を除く): 14198013

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 131, 189, 263, 393, 567, 789, 917, 1179, 1841, 2367, 2751, 3537, 5523, 7101, 8253, 10611, 16569, 21303, 24759, 34453, 49707, 74277, 103359, 149121, 241171, 310077, 723513, 930231, 2170539, 2790693, 6511617, 19534851]

約数ペア:

[(1, 19534851), (3, 6511617), (7, 2790693), (9, 2170539), (21, 930231), (27, 723513), (63, 310077), (81, 241171), (131, 149121), (189, 103359), (263, 74277), (393, 49707), (567, 34453), (789, 24759), (917, 21303), (1179, 16569), (1841, 10611), (2367, 8253), (2751, 7101), (3537, 5523)]