2131311

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{211}}^1$

素因数の和:271

約数の個数: 32

約数和(自身を含む): 3609088

約数和(自身を除く): 1477777

約数列:

[1, 3, 7, 13, 21, 37, 39, 91, 111, 211, 259, 273, 481, 633, 777, 1443, 1477, 2743, 3367, 4431, 7807, 8229, 10101, 19201, 23421, 54649, 57603, 101491, 163947, 304473, 710437, 2131311]

約数ペア:

[(1, 2131311), (3, 710437), (7, 304473), (13, 163947), (21, 101491), (37, 57603), (39, 54649), (91, 23421), (111, 19201), (211, 10101), (259, 8229), (273, 7807), (481, 4431), (633, 3367), (777, 2743), (1443, 1477)]