21947877

素因数分解:

$3^2\times 7^1\times {\mathrm{113}}^1\times {\mathrm{3083}}^1$

素因数の和:3209

約数の個数: 24

約数和(自身を含む): 36563904

約数和(自身を除く): 14616027

約数列:

[1, 3, 7, 9, 21, 63, 113, 339, 791, 1017, 2373, 3083, 7119, 9249, 21581, 27747, 64743, 194229, 348379, 1045137, 2438653, 3135411, 7315959, 21947877]

約数ペア:

[(1, 21947877), (3, 7315959), (7, 3135411), (9, 2438653), (21, 1045137), (63, 348379), (113, 194229), (339, 64743), (791, 27747), (1017, 21581), (2373, 9249), (3083, 7119)]